Gaya APA

(IPA), I, P, A. (1988). Proceedings of the Seventeenth Annual Convention Indonesian Petroleum Association ; Volume 1 - Exploration . Jakarta: Jakarta : Indonesia Petroleum Ass,.

Gaya MLA

(IPA), Indonesia, Petroleum, Ass. "Proceedings of the Seventeenth Annual Convention Indonesian Petroleum Association ; Volume 1 - Exploration". Jakarta: Jakarta : Indonesia Petroleum Ass,, 1988. Text.