APA (7th ed.) Citation

Duellman, W. E. (2011). Systematic Status of the Colubrid Snake, Leptodeira discolor Gunther. Project Gutenberg.

Chicago Style (17th ed.) Citation

Duellman, William Edward. Systematic Status of the Colubrid Snake, Leptodeira Discolor Gunther. Project Gutenberg, 2011.

MLA (9th ed.) Citation

Duellman, William Edward. Systematic Status of the Colubrid Snake, Leptodeira Discolor Gunther. Project Gutenberg, 2011.

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