APA (7th ed.) Citation

Jones, D., & Watkins, T. H. (1976). John Muir's America.

Chicago Style (17th ed.) Citation

Jones, Dewitt, and T. H. Watkins. John Muir's America. 1976.

MLA (9th ed.) Citation

Jones, Dewitt, and T. H. Watkins. John Muir's America. 1976.

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