Z'graggen, John. 1975. Comparative wordlists of the Gulf District and adjacent areas. In Richard Loving (ed.), Comparative wordlists I (Workpapers in Papua New Guinea Languages 14), 5-116. Ukarumpa: Summer Institute of Linguistics.
@misc{5680, author = {Z'graggen, John}, title = {Comparative wordlists of the Gulf District and adjacent areas. In Richard Loving (ed.), Comparative wordlists I (Workpapers in Papua New Guinea Languages 14), 5-116. Ukarumpa: Summer Institute of Linguistics.}, year = {1975} }