van der Tuuk, H. N. 1971. A Grammar of Toba Batak. The Hague: Martinus Nijhoff. (Reprint of 1864).
@book{vandertuuk1971, address = {The Hague}, author = {van der Tuuk, H. N.}, note = {Reprint of 1864}, publisher = {Martinus Nijhoff}, title = {A Grammar of Toba Batak}, year = {1971} }