APA (7th ed.) Citation

Krutzsch, P. H. (2012). North American Jumping Mice (Genus Zapus). Project Gutenberg.

Chicago Style (17th ed.) Citation

Krutzsch, Philip H. North American Jumping Mice (Genus Zapus). Project Gutenberg, 2012.

MLA (9th ed.) Citation

Krutzsch, Philip H. North American Jumping Mice (Genus Zapus). Project Gutenberg, 2012.

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