Laycock, Donald C. and Z'Graggen, John A. 1975. The Sepik-Ramu Phylum. In Wurm, Stephen A. (ed.), New Guinea Area Languages and Language Study Vol 1: Papuan Languages and the New Guinea linguistic scene, 731-764. Canberra: Research School of Pacific and Asian Studies, Australian National University.
@incollection{hvldLaycockZGraggenSepikRamu, address = {Canberra}, author = {Laycock, Donald C. and Z'Graggen, John A.}, booktitle = {New Guinea Area Languages and Language Study Vol 1: Papuan Languages and the New Guinea linguistic scene}, editor = {Wurm, Stephen A.}, pages = {731-764}, publisher = {Canberra: Research School of Pacific and Asian Studies, Australian National University}, series = {Pacific Linguistics: Series C}, title = {The Sepik-Ramu Phylum}, volume = {38}, year = {1975} }