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MLA

McDonnell, C.C, and R.C Roark. "Occurrence of Manganese In Insect Flowers and Insect Flower Stems." , 77-82.. Print

APA

McDonnell, C., & Roark, R. (0000). Occurrence of Manganese in Insect Flowers and Insect Flower Stems.

Chicago

McDonnell, C.C., and R.C Roark. "Occurrence of Manganese in Insect Flowers and Insect Flower Stems" (1917): 77-82..