Gaya APA

PACIFIC, U, N, E, C, F, A, A, T. (1981). DRILLING TEHNIQUES IN MINERAL AND IROUNDWATER EXPLORATION AND DEVELOPMENT . BANGKOK: United Nations.

Gaya MLA

PACIFIC, UNITED, NATIONS, ECONOMIC, COMMISSION, FOR, ASIA, AND, TH. "DRILLING TEHNIQUES IN MINERAL AND IROUNDWATER EXPLORATION AND DEVELOPMENT". BANGKOK: United Nations, 1981. Textbook.