United States. Animal and Plant Health Inspection Service. Veterinary Services, United States. Animal and Plant Health Inspection Service, & Strickland, R. K. (1976). Ticks of veterinary importance. Animal and Plant Health Inspection Service, U.S. Dept. of Agriculture.
Chicago Style (17th ed.) CitationUnited States. Animal and Plant Health Inspection Service. Veterinary Services, United States. Animal and Plant Health Inspection Service, and Robert K. Strickland. Ticks of Veterinary Importance. [Washington, D.C.]: Animal and Plant Health Inspection Service, U.S. Dept. of Agriculture, 1976.
MLA (9th ed.) CitationUnited States. Animal and Plant Health Inspection Service. Veterinary Services, et al. Ticks of Veterinary Importance. Animal and Plant Health Inspection Service, U.S. Dept. of Agriculture, 1976.