APA (7th ed.) Citation

Galilei, G., & Salusbury, T. (2011). Discourse on Floating Bodies. Project Gutenberg.

Chicago Style (17th ed.) Citation

Galilei, Galileo, and Thomas Salusbury. Discourse on Floating Bodies. Project Gutenberg, 2011.

MLA (9th ed.) Citation

Galilei, Galileo, and Thomas Salusbury. Discourse on Floating Bodies. Project Gutenberg, 2011.

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