Gaya APA

Napa, P, A. (19,922,001). How to answer english questions / Pieter A. Napa (Cet.1,7). : Kanisius.

Gaya MLA

Napa, Pieter, A.. "How to answer english questions / Pieter A. Napa". Cet.1,7 : Kanisius, 19,922,001. Textbook.