APA (7th ed.) Zitazioa
Pierce, W. D. (1912). The Insect Enemies of the cotton boll weevil.
Chicago Style (17th ed.) Zitazioa
Pierce, William Dwight. The Insect Enemies of the Cotton Boll Weevil. Washington, 1912.
MLA (9th ed.) Zitazioa
Pierce, William Dwight. The Insect Enemies of the Cotton Boll Weevil. 1912.
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