Bibliography

Bibliography of Vitality:
Stanhope, John M. 1980. "The Language of the Rao People, Grengabu, Madang Province, Papua New Guinea." 18: vii+28. Canberra: Research School of Pacific and Asian Studies, Australian National University.
Bibliography of Locations:
2005. "The World Atlas of Language Structures." edited by Bernard Comrie et al. Oxford University Press.
Bibliography of Context:
Stanhope, John M. 1980. "The Language of the Rao People, Grengabu, Madang Province, Papua New Guinea." 18: vii+28. Canberra: Research School of Pacific and Asian Studies, Australian National University.