Gaya APA

BPT/PBG, D, P. (1973). Terms of Reference, Study on Extraction Possibilities of Primary Tin Ores In Indonesia . : Department of Mines.

Gaya MLA

BPT/PBG, Direktorat, Pertambangan. "Terms of Reference, Study on Extraction Possibilities of Primary Tin Ores In Indonesia". : Department of Mines, 1973. Text.