Woollams, Geoff. 1996. A Grammar of Karo Batak, Sumatra. (Pacific Linguistics: Series C, 130.) Canberra: Research School of Pacific and Asian Studies, Australian National University. x+351pp.
@book{gWoollamsKaroBatak,
author = {Woollams, Geoff},
pages = {x+351},
publisher = {Canberra: Research School of Pacific and Asian Studies, Australian National University},
series = {Pacific Linguistics: Series C},
title = {A Grammar of Karo Batak, Sumatra},
volume = {130},
year = {1996}
}