Foreman, Velma and Marten, Helen. 1973. Yessan-Mayo Phonemes. In Healey, Alan (ed.), Phonologies of Three Languages of Papua New Guinea, 79–108. Ukarumpa: Summer Institute of Linguistics.
@incollection{foremanmarten1973,
address = {Ukarumpa},
author = {Foreman, Velma and Marten, Helen},
booktitle = {Phonologies of Three Languages of Papua New Guinea},
editor = {Healey, Alan},
pages = {79–108},
publisher = {Summer Institute of Linguistics},
series = {Workpapers in Papua New Guinea Languages},
title = {Yessan-Mayo Phonemes},
volume = {2},
year = {1973}
}