APA (7th ed.) Citation

Iles, G. (2009). Little Masterpieces of Science: Explorers. Project Gutenberg.

Chicago Style (17th ed.) Citation

Iles, George. Little Masterpieces of Science: Explorers. Project Gutenberg, 2009.

MLA (9th ed.) Citation

Iles, George. Little Masterpieces of Science: Explorers. Project Gutenberg, 2009.

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