Παραπομπή σε μορφή APA (7η εκδ.)

National Planning Institute. (1991). Prices and marketing policies in agriculture: Cairo : 17 nov- 5 dec- 1991. National Planning Institute.

Παραπομπή σε μορφή Chicago (17η εκδ.)

National Planning Institute. Prices and Marketing Policies in Agriculture: Cairo : 17 Nov- 5 Dec- 1991. cairo: National Planning Institute, 1991.

Παραπομπή σε μορφή MLA (9th εκδ.)

National Planning Institute. Prices and Marketing Policies in Agriculture: Cairo : 17 Nov- 5 Dec- 1991. National Planning Institute, 1991.