APA (7th ed.) Citation

Ehrlich Robert. (2007). Nine crazy ideas in science. Pentagon press books pub ltd.

Chicago Style (17th ed.) Citation

Ehrlich Robert. Nine Crazy Ideas in Science. New Delhi: Pentagon press books pub ltd, 2007.

MLA (9th ed.) Citation

Ehrlich Robert. Nine Crazy Ideas in Science. Pentagon press books pub ltd, 2007.

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