Boush, Al. 1975. Tifal Grammar Essentials. Ukarumpa, Papua New Guinea: Unpublished Typescript, The Summer Institute of Linguistics. 80pp.
@misc{dryerorder-hhsBoushTifal, author = {Boush, Al}, howpublished = {Ukarumpa, Papua New Guinea: Unpublished Typescript, The Summer Institute of Linguistics}, key = {Boush 1975}, pages = {80}, title = {Tifal Grammar Essentials}, year = {1975} }