APA (7th ed.) Citation

Soule, G. (1970). The greatest depths: Probing the seas to 20,000 feet and below. Macrae Smith Co..

Chicago Style (17th ed.) Citation

Soule, Gardner. The Greatest Depths: Probing the Seas to 20,000 Feet and Below. Philadelphia: Macrae Smith Co., 1970.

MLA (9th ed.) Citation

Soule, Gardner. The Greatest Depths: Probing the Seas to 20,000 Feet and Below. Macrae Smith Co., 1970.