Hints on Bobcat Trapping
USDA Leaflet No. 78
Hints on Mountain-Lion Trapping
USDA Leaflet No. 94
Information for the Guidance of Field Men and Cooperators of the Bureau of Biological Survey Engaged in the Control of Injurious Rodents and Predatory Animals
USDA Miscellaneous Publication No. 115
Hints on Wolf and Coyote Trapping