Lawrence, Marshall. 1972. Oksapmin Sentence Structure. In Papers in New Guinea Linguistics No. 15, 17-46. Canberra: Australian National University.
@incollection{sinnemakizeromarking-Lawrence1972, address = {Canberra}, author = {Lawrence, Marshall}, booktitle = {Papers in New Guinea Linguistics No. 15}, pages = {17-46}, publisher = {Australian National University}, series = {Pacific Linguistics A}, title = {Oksapmin Sentence Structure}, volume = {31}, year = {1972} }