Cita APA (7th ed.)

Brower, K. (1990). Yosemite: An American treasure. National Geographic Society.

Cita Chicago (17th ed.)

Brower, Kenneth. Yosemite: An American Treasure. Washington, D.C: National Geographic Society, 1990.

Cita MLA (9th ed.)

Brower, Kenneth. Yosemite: An American Treasure. National Geographic Society, 1990.