The phrase "as a quotation" is correct and usable in written English.
It can be used when referring to something that is being cited or presented as a direct quote from a source.
Example: "The author stated, 'Knowledge is power,' as a quotation to emphasize the importance of education."
Alternatives: "as a citation" or "in quotation form".
Or as a quotation attributed to the late business professor Aaron Levenstein has it: "Statistics are like bikinis.
Even line itself, the assertion of a contour, however nuanced and optical the shadings within, is as fictional as a quotation mark.
To gain perspective, Mr. Jackson asks his subjects what is on their minds, then uses the answer as a quotation in the finished portrait.
Irwin, instead of revealing himself, hides behind the harlequin façade; he is not so much a metaphor as a quotation mark.
The problem with ascribing it all to Xenocrates is that Porphyry introduces the passage as a quotation from Heraclides, which would be strange if everything quoted, in fact, belongs to Xenocrates.
Northern singers and writers often used it for parody or as a quotation in other pieces to establish a person or setting as Southern.
Shapiro, a librarian at the Yale Law School, is an attribution hound, as is Ralph Keyes, a quotation specialist and the author of "The Quote Verifier" (St. Martin's; $15.95).
As a consequence, domestic violence and misunderstandings seem to have been likely consequences as illustrated by a quotation from an interview with a 21-year old woman from sub-county D reproduced below;... late in 2008, my husband tested HIV positive but for me, I tested negative... my husband puts me to task to explain how it happens that I am negative.
Charles Barkley is, as expected, a quotation machine.
These items appear in the electronic catalog as requiring a quotation.
Jane's apathy-as-rebellion recalls a quotation from Stella Adler: "A junkie is someone who uses their body to tell society that something is wrong".
