Dyfyniad APA

Indonesia. Departemen Penerangan. (1976). Organisasi Negara-Negara Peng-Ekspor Minyak, OPEC (Organization of Petroleum Exporting Countries).

Dyfyniad Arddull Chicago

Indonesia. Departemen Penerangan. Organisasi Negara-Negara Peng-Ekspor Minyak, OPEC (Organization of Petroleum Exporting Countries). [Jakarta] : Departemen Penerangan R.I, 1976.

Dyfyniad MLA

Indonesia. Departemen Penerangan. Organisasi Negara-Negara Peng-Ekspor Minyak, OPEC (Organization of Petroleum Exporting Countries). 1976.

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