Schwab, W. (1967). Guide to modern grammar and exposition. Harper & Row.
Lua i Stíl Chicago (17ú heag.)Schwab, William. Guide to Modern Grammar and Exposition. New York: Harper & Row, 1967.
Lua MLA (9ú heag.)Schwab, William. Guide to Modern Grammar and Exposition. Harper & Row, 1967.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.