Zorc, R. David. 1979. Core etymological dictionary of Filipino. Typescript, 61pp, dated August, 1979.
@misc{zorc1979,
author = {Zorc, R. David},
howpublished = {Typescript, 61pp, dated August, 1979},
key = {Zorc 1979},
title = {Core etymological dictionary of Filipino},
year = {1979}
}