APA (7th ed.) Citation

Huber, F. (2008). New observations on the natural history of bees. Project Gutenberg.

Chicago Style (17th ed.) Citation

Huber, François. New Observations on the Natural History of Bees. Project Gutenberg, 2008.

MLA (9th ed.) Citation

Huber, François. New Observations on the Natural History of Bees. Project Gutenberg, 2008.

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