Cita APA

Independent Petroleum Association of America. (1971). Petroleum independent. Independent Petroleum Association of America].

Citación estilo Chicago

Independent Petroleum Association of America. Petroleum Independent. [Tulsa, Okla.: Independent Petroleum Association of America], 1971.

Cita MLA

Independent Petroleum Association of America. Petroleum Independent. Independent Petroleum Association of America], 1971.

Warning: These citations may not always be 100% accurate.