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MLA

Graybill, H. W. (Harry Webster), and W. M Lewallen. "Studies On the Biology of the Texas Fever Tick : Supplementary Report." , p.. Print

APA

Graybill, H. W. (Harry Webster), & Lewallen, W. M. (1912). Studies on the biology of the Texas fever tick : supplementary report.

Chicago

Graybill, H. W. (Harry Webster), and W. M Lewallen. "Studies on the biology of the Texas fever tick : supplementary report" (1912): p..