APA (7e ed.) Bronvermelding

Powell, J. (1975). Agricultural traditions of the Mount Hagen area. University of Papua New Guinea, Dept. of Geography.

Chicago (17e ed.) Bronvermelding

Powell, Jocelyn. Agricultural Traditions of the Mount Hagen Area. [Port Moresby]: University of Papua New Guinea, Dept. of Geography, 1975.

MLA (9e ed.) Bronvermelding

Powell, Jocelyn. Agricultural Traditions of the Mount Hagen Area. University of Papua New Guinea, Dept. of Geography, 1975.