APA (7th ed.) Citation
CASTLE, D. (1992). SIGNALING AND ASSISTIVE LISTENING DEVICES FOR HEARING-IMPAIRED PEOPLE. ALEXANDER GRAHAM BELL ASSOCIATION FOR THE DEAF.
Chicago Style (17th ed.) Citation
CASTLE, D.L. SIGNALING AND ASSISTIVE LISTENING DEVICES FOR HEARING-IMPAIRED PEOPLE. WASHINGTON (USA): ALEXANDER GRAHAM BELL ASSOCIATION FOR THE DEAF, 1992.
MLA (9th ed.) Citation
CASTLE, D.L. SIGNALING AND ASSISTIVE LISTENING DEVICES FOR HEARING-IMPAIRED PEOPLE. ALEXANDER GRAHAM BELL ASSOCIATION FOR THE DEAF, 1992.
Warning: These citations may not always be 100% accurate.