Παραπομπή σε μορφή APA (7η εκδ.)

Hagedorn, K. (2002). Environmental cooperation and institutional change: Theories and policies for european agriculture. Elgar.

Παραπομπή σε μορφή Chicago (17η εκδ.)

Hagedorn, Konrad. Environmental Cooperation and Institutional Change: Theories and Policies for European Agriculture. Cheltenham: Elgar, 2002.

Παραπομπή σε μορφή MLA (8th εκδ.)

Hagedorn, Konrad. Environmental Cooperation and Institutional Change: Theories and Policies for European Agriculture. Elgar, 2002.