Gaya APA

Vries, L, D, &, R, D, V. (1992). The morphology of Wambon of the Irian Jaya upper-Digul area, with an introduction to its phonology. . Leiden: KITLV Press.

Gaya MLA

Vries, Lourens, De, &, Robinia, De, Vries-Wiersma. "The morphology of Wambon of the Irian Jaya upper-Digul area, with an introduction to its phonology. ". Leiden: KITLV Press, 1992. Buku.