Παραπομπή σε μορφή APA (7η εκδ.)

Kay, R. D. (1981). Farm management: Planning, control, and implementation (Inter. student ed.). McGraw-Hill.

Παραπομπή σε μορφή Chicago (17η εκδ.)

Kay, Ronald D. Farm Management: Planning, Control, and Implementation. Inter. student ed. Auckland: McGraw-Hill, 1981.

Παραπομπή σε μορφή MLA (8th εκδ.)

Kay, Ronald D. Farm Management: Planning, Control, and Implementation. Inter. student ed. McGraw-Hill, 1981.