The Wambom relator system / Lourens de VriesStudies in Wambon and Kombai : aspects of two Papuan languages of Irian Jaya / Lourens Johan de VriesAn outline of the morphology of Wambon of the Irian Jaya upper-digul area : with an introduction to its phonology / Lourens de Vries, Robinia de Vries-WiersmaThe morphology of Wambon of the Irian Jaya Upper-Digul area : with an introduction to its phonology / Lourens de Vries, Robinia de Vries-WiersmaClause combining in spoken and written language : evidence from the oral languages of New Guinea / Lourens de VriesNotional and coded information roles / Lourens de Vries[ Over: Dutton, Tom E. Koiari. München: Lincom Europa, 1996] / Lourens de Vries[ Over: Knauft, Bruce M. South coast New Guinea cultures: history, comparison, dialectic. Cambridge: Cambridge University Press, 1993] / Lourens de Vries[ Over: Mosel, Ulrike. Saliba. Munchen/Newcastle: Lincom Europa, 1994] / Lourens de VriesVan vijg tot pisang : de eerste Maleise bijbelvertaling van 1629 / Lourens de VriesDe grondtaal van Nieuw Guinea / L.J. de Vries