APA (7th ed.) Citation

Scheele, C. W. (2008). Discovery of Oxygen, Part 2. Project Gutenberg.

Chicago Style (17th ed.) Citation

Scheele, Carl Wilhelm. Discovery of Oxygen, Part 2. Project Gutenberg, 2008.

MLA (9th ed.) Citation

Scheele, Carl Wilhelm. Discovery of Oxygen, Part 2. Project Gutenberg, 2008.

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