Παραπομπή APA

Hunt, D. (1977). Farm power and machinery management (7.). Iowa state university press.

Παραπομπή Chicago Style

Hunt, D. Farm Power and Machinery Management. 7. Iowa: Iowa state university press, 1977.

Παραπομπή MLA

Hunt, D. Farm Power and Machinery Management. 7. Iowa state university press, 1977.