APA (7th ed.) Citation

Robinson, S. (2006). Guano A Treatise of Practical Information for Farmers. Project Gutenberg.

Chicago Style (17th ed.) Citation

Robinson, Solon. Guano A Treatise of Practical Information for Farmers. Project Gutenberg, 2006.

MLA (9th ed.) Citation

Robinson, Solon. Guano A Treatise of Practical Information for Farmers. Project Gutenberg, 2006.

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