APA (7th ed.) Citation

Black, J. (1976). Petróleo (1a ed.). Ultramar.

Chicago Style (17th ed.) Citation

Black, Jonathan. Petróleo. 1a ed. Madrid: Ultramar, 1976.

MLA (9th ed.) Citation

Black, Jonathan. Petróleo. 1a ed. Ultramar, 1976.

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