APA aipamena

Davis, K. C. (1917). Productive farming (3d ed., rev. and enl.). J.B. Lippincott company.

Chicago Style aipamena

Davis, Kary Cadmus. Productive Farming. 3d ed., rev. and enl. Philadelphia and London: J.B. Lippincott company, 1917.

MLA aipamena

Davis, Kary Cadmus. Productive Farming. 3d ed., rev. and enl. J.B. Lippincott company, 1917.