APA (7. basım) Alıntı

Heady, E. O. (1966). Agricultural problems and policies of developed countries.

Chicago Style (17. basım) Atıf

Heady, Earl Orel. Agricultural Problems and Policies of Developed Countries. Oslo, 1966.

MLA (9th ed.) Atıf

Heady, Earl Orel. Agricultural Problems and Policies of Developed Countries. 1966.