@misc{Osgood_Wilfred_H._(1875–1947)_Revision,
 author={Osgood, Wilfred H. (1875–1947)},
 howpublished={online},
 publisher={Government Printing Office},
 type={szkice},
 title={Revision of the pocket mice of the genus Perognathus},
 keywords={Ameryka Północna 19w., fauna},
}