Παραπομπή APA

Greenshields, B. (1989). Government intervention in agriculture: Causes and effect. International Association of Agricultural economists.

Παραπομπή Chicago Style

Greenshields, B. Government Intervention in Agriculture: Causes and Effect. U K: International Association of Agricultural economists, 1989.

Παραπομπή MLA

Greenshields, B. Government Intervention in Agriculture: Causes and Effect. International Association of Agricultural economists, 1989.