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MLA

Puckett, H.B, K.E Harshbarger, and E.F Olver. "Automatic Livestock Feeding." , 125-128.. Print

APA

Puckett, H., Harshbarger, K., & Olver, E. (0000). Automatic Livestock Feeding.

Chicago

Puckett, H.B., K.E Harshbarger, and E.F Olver. "Automatic Livestock Feeding" (1968): 125-128..