APA (7th ed.) Citation

Walker, B. S. (1978). The Rocky mountais. Time-Life Books.

Chicago Style (17th ed.) Citation

Walker, Bryce S. The Rocky Mountais. Amsterdam: Time-Life Books, 1978.

MLA (9th ed.) Citation

Walker, Bryce S. The Rocky Mountais. Time-Life Books, 1978.

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