APA (7th ed.) Citation

Johnsgard, P. A. (1999). Earth, water, and sky: A naturalist's stories and sketches. University of Texas Press.

Chicago Style (17th ed.) Citation

Johnsgard, Paul A. Earth, Water, and Sky: A Naturalist's Stories and Sketches. Austin, Tex.: University of Texas Press, 1999.

MLA (9th ed.) Citation

Johnsgard, Paul A. Earth, Water, and Sky: A Naturalist's Stories and Sketches. University of Texas Press, 1999.