APA (7th ed.) Citation

Spring, B., Spring, I., & Manning, H. (1969). The North Cascades National Park ([1st ed.].). Superior Pub. Co.

Chicago Style (17th ed.) Citation

Spring, Bob, Ira Spring, and Harvey Manning. The North Cascades National Park. [1st ed.]. Seattle: Superior Pub. Co, 1969.

MLA (8th ed.) Citation

Spring, Bob, et al. The North Cascades National Park. [1st ed.]. Superior Pub. Co, 1969.

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