Fletcher, H. (1953). Speech and hearing in communication. Van Nostrand.
Lua i Stíl Chicago (17ú heag.)Fletcher, Harvey. Speech and Hearing in Communication. Princeton, N.J: Van Nostrand, 1953.
Lua MLA (9ú heag.)Fletcher, Harvey. Speech and Hearing in Communication. Van Nostrand, 1953.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.