APA (7th ed.) Citation

Calman, W. T. (2012). The Life of Crustacea. Project Gutenberg.

Chicago Style (17th ed.) Citation

Calman, William Thomas. The Life of Crustacea. Project Gutenberg, 2012.

MLA (9th ed.) Citation

Calman, William Thomas. The Life of Crustacea. Project Gutenberg, 2012.

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