↑ Roosevelt, Theodore. Hunting Trips of a Ranchman: Hunting Trips on the Prairie and in the Mountains, Adamant Media Corporation, ISBN 1-4212-6647-4
↑ Smith, Richard P. (2007) Black Bear Hunting, Stackpole Books, ISBN 0-8117-0269-3
↑ Nelson, Richard K. Hunters of the northern forest: designs for survival among the Alaskan Kutchin, University of Chicago Press, 1986, ISBN 0-226-57181-5
↑ Schuh, Dwight R. (1992) Bowhunter's Encyclopedia, Stackpole Books, ISBN 0-8117-2412-3
↑ Partington, Charles Frederick (1835) The British Cyclopædia of Natural History: Combining a Scientific Classification of Animals, Plants, and Minerals, Vol. 1, Orr & Smith.
