APA (7th ed.) Zitazioa
Johnsgard, P. A. (2014). Seasons of the tallgrass prairie: A Nebraska year. University of Nebraska Press.
Chicago Style (17th ed.) Zitazioa
Johnsgard, Paul A. Seasons of the Tallgrass Prairie: A Nebraska Year. Lincoln, Nebraska ; London: University of Nebraska Press, 2014.
MLA (9th ed.) Zitazioa
Johnsgard, Paul A. Seasons of the Tallgrass Prairie: A Nebraska Year. University of Nebraska Press, 2014.
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