Παραπομπή APA

Crown, R. W., & Heady, E. O. (1972). Policy intergration in Canadian agriculture. Amess: Iowa state University press.

Παραπομπή Chicago Style

Crown, Robert W., and Earl Orel Heady. Policy Intergration in Canadian Agriculture. Amess: Iowa state University press, 1972.

Παραπομπή MLA

Crown, Robert W., and Earl Orel Heady. Policy Intergration in Canadian Agriculture. Amess: Iowa state University press, 1972.

Πρόσοχή: Οι παραπομπές μπορεί να μην είναι 100% ακριβείς.