APA (7e ed.) Bronvermelding

Papua New Guinea. Dept. of Forests. Mapping Branch. (1976). Preparation of the map base. The Dept..

Chicago (17e ed.) Bronvermelding

Papua New Guinea. Dept. of Forests. Mapping Branch. Preparation of the Map Base. Boroko: The Dept., 1976.

MLA (9e ed.) Bronvermelding

Papua New Guinea. Dept. of Forests. Mapping Branch. Preparation of the Map Base. The Dept., 1976.