Johnsgard, P. A. (2011). Sandhill and whooping cranes: Ancient voices over America's wetlands. University of Nebraska Press.
芝加哥风格引文Johnsgard, Paul A. Sandhill and Whooping Cranes: Ancient Voices over America's Wetlands. Lincoln [Neb.]: University of Nebraska Press, 2011.
MLA引文Johnsgard, Paul A. Sandhill and Whooping Cranes: Ancient Voices over America's Wetlands. University of Nebraska Press, 2011.
警告：这些引文格式不一定是100％准确.