APA (7th ed.) Citation

Bettsworth, M. (1976). Drownproofing: A technique for water survival. Schocken Books, 1977.

Chicago Style (17th ed.) Citation

Bettsworth, Michael. Drownproofing: A Technique for Water Survival. New York: Schocken Books, 1977, 1976.

MLA (9th ed.) Citation

Bettsworth, Michael. Drownproofing: A Technique for Water Survival. Schocken Books, 1977, 1976.

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