shoot & shot are film/movie & professional photographic terms.
shoot describes the 'event' at which film stock is used to make the movie/photographs.
The shoot is a general term for the entire occasion, at which there may be several hundred people, all doing different tasks that make up the event; from catering, locations & logistics, transport, carpenters & riggers, lighting specialists, sound recordists, cameramen & grips [camera movers], production crew, actors, director … all are on the same 'shoot'.
Stills & movie would be differentiated as
photo shoot / stills shoot or
film shoot / movie shoot.
'stills' is the movie term for non-moving pictures.
A stills photographer would call them shots or photographs, as there is no 'moving' alternative to cause confusion.
A shot is either
- The specific way the camera is lined up &/or moved, re-focussed etc., to point at the actors or scene, in order to film that one small section of the action, or
- for stills photography, either the above, or simply any one single photograph - whether it required an entire film crew to take it or not.
An aside… this is where we get the term "Who is calling the shots?"
The answer is - the Director.
The meanings can overlap.
To "quote" is to repeat someone else's words, in a way that indicates that you are repeating someone else's words, as opposed to incorporating them into your own work without any explicit identification that they are copied. (This could be plagiarism or it could be an allusion, but that's a different issue.)
To "cite" is to reference some other work. You may be quoting it word-for-word or you may simply be referring to it. "Cite" can be used to mean "quote", but it would rarely be used if you gave a quote without a reference, and it can be used when you give a reference without a quote.
Examples: "As Winston Churchill said, 'I have nothing to offer but blood, toil, tears, and sweat.'" This is unquestionably a quote. It might be called a citation.
"According to Barclay's Famous Quotations, Winston Churchill once said, 'I have nothing to offer but blood, toil, tears, and sweat." This is both a quote and a citation.
"In his History of Britain, Charles Stover says that Churchill called on the British people to be willing to make sacrifices." This is a citation but not a quote. It is not a quote because we are not repeating any exact words.
And to be complete: If I wrote a novel, and at some point in the novel I write, "General Framnitz urged his soldiers to fight on. 'I have nothing to offer but blood, toil, tears, and the billions of dollars of loot that we will get when we take the city'", that would be an allusion and not a quote, because I am not making any clear reference to Mr Churchill, and because I'm adapting the quote for my own purposes.
A citation can be informal like my examples here, "As he said in ...", or it could be a more formal reference, like "See Stover, Charles. History of Britain. Fwacbar Publishing, 1964, pp 85-86" (The exact formatting varying depending on what style guide you're using, if any.)
Best Answer
It depends on how formal/informal the situation, and by extension, the email is.
For a formal setting, you could use:
For an informal setting, anything simpler goes:
Look up some in-depth strategies on writing formal letters here. It might help.