Cooley, R. A. 1873-1968.

The genera Boophilus, Rhipicephalus, and Haemaphysalis (Ixodidae) of the new world, by R. A. Cooley ... - Washington, U.S. Govt. print. off., 1946. - iii, 54 p. ill.

U. S. 79th Cong., 2d sess. House. Doc. 603. "From the Rocky mountain laboratory, Division of infectious diseases, National institute of health."

"References": p. 51-54.

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Ticks.

RA421 / .U4 no. 187

W1 / UN659 no.187