Παραπομπή σε μορφή APA (7η εκδ.)

Hveem, H. (1978). The political economy of Third World producer associations: On conditions and constraints for effective collective action among raw material producing-exporting countries. Universitetsforlaget.

Παραπομπή σε μορφή Chicago (17η εκδ.)

Hveem, Helge. The Political Economy of Third World Producer Associations: On Conditions and Constraints for Effective Collective Action Among Raw Material Producing-exporting Countries. Oslo: Universitetsforlaget, 1978.

Παραπομπή σε μορφή MLA (9th εκδ.)

Hveem, Helge. The Political Economy of Third World Producer Associations: On Conditions and Constraints for Effective Collective Action Among Raw Material Producing-exporting Countries. Universitetsforlaget, 1978.