APA aipamena

Organization of Petroleum Exporting Countries. (1983). Basic oil industry information. Organization of the Petroleum Exporting Countries.

Chicago Style aipamena

Organization of Petroleum Exporting Countries. Basic Oil Industry Information. Vienna, Austria: Organization of the Petroleum Exporting Countries, 1983.

MLA aipamena

Organization of Petroleum Exporting Countries. Basic Oil Industry Information. Organization of the Petroleum Exporting Countries, 1983.