APA (7th ed.) Citation

Marks, P. (2005). The Plastic Age. Project Gutenberg.

Chicago Style (17th ed.) Citation

Marks, Percy. The Plastic Age. Project Gutenberg, 2005.

MLA (9th ed.) Citation

Marks, Percy. The Plastic Age. Project Gutenberg, 2005.

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