APA (7th ed.) Citation

Gray, A. (2010). The Elements of Botany For Beginners and For Schools. Project Gutenberg.

Chicago Style (17th ed.) Citation

Gray, Asa. The Elements of Botany For Beginners and For Schools. Project Gutenberg, 2010.

MLA (9th ed.) Citation

Gray, Asa. The Elements of Botany For Beginners and For Schools. Project Gutenberg, 2010.

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