APA (7th ed.) Citation

Walker, B. (1974). Die Rocky Mountains. Time-Life International.

Chicago Style (17th ed.) Citation

Walker, Bryce. Die Rocky Mountains. Amsterdam: Time-Life International, 1974.

MLA (9th ed.) Citation

Walker, Bryce. Die Rocky Mountains. Time-Life International, 1974.

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