Παραπομπή σε μορφή APA (7η εκδ.)

Irlam, W. R. (1970). A sectoral study of the food, drink and tobacco manufacturing industry in Papua New Guinea.

Παραπομπή σε μορφή Chicago (17η εκδ.)

Irlam, Wm. Ronald. A Sectoral Study of the Food, Drink and Tobacco Manufacturing Industry in Papua New Guinea. 1970.

Παραπομπή σε μορφή MLA (9th εκδ.)

Irlam, Wm. Ronald. A Sectoral Study of the Food, Drink and Tobacco Manufacturing Industry in Papua New Guinea. 1970.