New York Public Library & Harris, S. (1991). The New York Public Library book of how and where to look it up. Prentice Hall.
Lua i Stíl Chicago (17ú heag.)New York Public Library agus Sherwood Harris. The New York Public Library Book of How and Where to Look It Up. New York: Prentice Hall, 1991.
Lua MLA (9ú heag.)New York Public Library agus Sherwood Harris. The New York Public Library Book of How and Where to Look It Up. Prentice Hall, 1991.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.