APA (7th ed.) Citation

Knight, D. C. (1980). Silent sound: The world of ultrasonics. Morrow.

Chicago Style (17th ed.) Citation

Knight, David C. Silent Sound: The World of Ultrasonics. New York: Morrow, 1980.

MLA (9th ed.) Citation

Knight, David C. Silent Sound: The World of Ultrasonics. Morrow, 1980.

Warning: These citations may not always be 100% accurate.