APA (7th ed.) Citation

Walker, B. S. (1978). Die Rocky Mountains (4. German print.). Time-Life Internat.

Chicago Style (17th ed.) Citation

Walker, Bryce S. Die Rocky Mountains. 4. German print. Amsterdam: Time-Life Internat, 1978.

MLA (9th ed.) Citation

Walker, Bryce S. Die Rocky Mountains. 4. German print. Time-Life Internat, 1978.

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