Cita APA (7th ed.)

Knauer, K. (2009). Time great discoveries: Explorations that changed history. Time Inc. Home Entertainment.

Cita Chicago (17th ed.)

Knauer, Kelly. Time Great Discoveries: Explorations That Changed History. New York, NY: Time Inc. Home Entertainment, 2009.

Cita MLA (9th ed.)

Knauer, Kelly. Time Great Discoveries: Explorations That Changed History. Time Inc. Home Entertainment, 2009.