APA (7th ed.) Citation

Wassmann, J. (1995). Historical atlas of ethnic and linguistic groups in Papua New Guinea. Historical atlas of ethnic and linguistic groups in Papua New Guinea.

Chicago Style (17th ed.) Citation

Wassmann, Jürg. "Historical Atlas of Ethnic and Linguistic Groups in Papua New Guinea." Historical Atlas of Ethnic and Linguistic Groups in Papua New Guinea 1995.

MLA (9th ed.) Citation

Wassmann, Jürg. "Historical Atlas of Ethnic and Linguistic Groups in Papua New Guinea." Historical Atlas of Ethnic and Linguistic Groups in Papua New Guinea, 1995.