APA (7th ed.) Citation

Knauer, K. (2009). Great discoveries: Explorations that changed history. Time Books.

Chicago Style (17th ed.) Citation

Knauer, Kelly. Great Discoveries: Explorations That Changed History. New York: Time Books, 2009.

MLA (9th ed.) Citation

Knauer, Kelly. Great Discoveries: Explorations That Changed History. Time Books, 2009.

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