Z'graggen, Johannes A. 1980. A Comparative Word List of the Northern Adelbert Range Languages, Madang Province, Papua New Guinea. Pacific Linguistics D-31. Canberra: Australian National University.
@misc{4112, author = {Z'graggen, Johannes A.}, title = {A Comparative Word List of the Northern Adelbert Range Languages, Madang Province, Papua New Guinea. Pacific Linguistics D-31. Canberra: Australian National University.}, year = {1980} }