Dyfyniad APA

(1989). Statistik Pertambangan Minyak Dan Gas Bumi Indonesia = Mining Statistics Of Petroleum And Natural Gas Of Indonesia 1987/1988. Biro Pusat Statistik.

Dyfyniad Arddull Chicago

Statistik Pertambangan Minyak Dan Gas Bumi Indonesia = Mining Statistics Of Petroleum And Natural Gas Of Indonesia 1987/1988. Biro Pusat Statistik, 1989.

Dyfyniad MLA

Statistik Pertambangan Minyak Dan Gas Bumi Indonesia = Mining Statistics Of Petroleum And Natural Gas Of Indonesia 1987/1988. Biro Pusat Statistik, 1989.

Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.