Johnsgard, P. A. (2011). Sandhill and Whooping Cranes: Ancient Voices over America's Wetlands. University of Nebraska Press.
Style de citation Chicago (17e éd.)Johnsgard, Paul A. Sandhill and Whooping Cranes: Ancient Voices over America's Wetlands. London: University of Nebraska Press, 2011.
Style de citation MLA (8e éd.)Johnsgard, Paul A. Sandhill and Whooping Cranes: Ancient Voices over America's Wetlands. University of Nebraska Press, 2011.
Attention : ces citations peuvent ne pas être correctes à 100%.