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MLA

Hill, C.C, and H.D Smith. "Heterospilus Cephi Rohwer, a Parasite of the European Wheat Sawfly, Cephus Pygmaeus (l)." , 597-609.. Print

APA

Hill, C., & Smith, H. (0000). Heterospilus cephi Rohwer, a Parasite of the European Wheat Sawfly, Cephus pygmaeus (L).

Chicago

Hill, C.C., and H.D Smith. "Heterospilus cephi Rohwer, a Parasite of the European Wheat Sawfly, Cephus pygmaeus (L)" (1931): 597-609..