APA

(1976). Principles of Field Crop Production. New York: Macmillan Publishing Co., Inc.

Chicago

1976. Principles of Field Crop Production. New York: Macmillan Publishing Co., Inc.

Harvard

(1976). Principles of Field Crop Production. New York: Macmillan Publishing Co., Inc.

MLA

Principles of Field Crop Production. New York: Macmillan Publishing Co., Inc. 1976.