APA (7th ed.) Citation

Ruhle, G. C. (1959). Hawaii National Park: A guide for the Haleakala Section, Island of Maui, Hawaii. Hawaii Natural History Association.

Chicago Style (17th ed.) Citation

Ruhle, George Cornelius. Hawaii National Park: A Guide for the Haleakala Section, Island of Maui, Hawaii. [Honolulu]: Hawaii Natural History Association, 1959.

MLA (9th ed.) Citation

Ruhle, George Cornelius. Hawaii National Park: A Guide for the Haleakala Section, Island of Maui, Hawaii. Hawaii Natural History Association, 1959.