APA (7th ed.) Citation

Threlfall, R. (2007). On Laboratory Arts. Project Gutenberg.

Chicago Style (17th ed.) Citation

Threlfall, Richard. On Laboratory Arts. Project Gutenberg, 2007.

MLA (9th ed.) Citation

Threlfall, Richard. On Laboratory Arts. Project Gutenberg, 2007.

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