APA (7th ed.) Citation

Ballantyne, R. M., & Pearson. (2007). Under the Waves: Diving in Deep Waters. Project Gutenberg.

Chicago Style (17th ed.) Citation

Ballantyne, R. M., and Pearson. Under the Waves: Diving in Deep Waters. Project Gutenberg, 2007.

MLA (9th ed.) Citation

Ballantyne, R. M., and Pearson. Under the Waves: Diving in Deep Waters. Project Gutenberg, 2007.

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