Here are a few books that I use frequently for reference questions at the library. All are circulating books and can be found in almost any library or book store.
The Beacon book of quotations by women by compiled by Rosalie Maggio.
The Columbia Granger's dictionary of poetry quotations by edited by Edith P. Hazen
Familiar quotations : a collection of passages, phrases, and proverbs traced to their sources in ancient and modern literature by John Bartlett ; Justin Kaplan, general editor