Gaya APA

Swanson, C, P., Llamzon, T, A. (1969). A subgrouping of nine philippine languages . The Hague: The Hague: Martinus Nijhoff; 1969.

Gaya MLA

Swanson, Carl, P.., Llamzon, Teodoro, A.. "A subgrouping of nine philippine languages". The Hague: The Hague: Martinus Nijhoff; 1969, 1969. Text.