Stanhope, John M. 1980. The Language of the Rao People, Grengabu, Madang Province, Papua New Guinea. (Pacific Linguistics D, 18.) Canberra: Australian National University.
@book{sinnemakizeromarking-Stanhope1980,
address = {Canberra},
author = {Stanhope, John M.},
publisher = {Australian National University},
series = {Pacific Linguistics D},
title = {The Language of the Rao People, Grengabu, Madang Province, Papua New Guinea},
volume = {18},
year = {1980}
}