APA (7th ed.) Citation

O'Connor, R. (1971). The oil barons: Men of greed and grandeur. Little, Brown.

Chicago Style (17th ed.) Citation

O'Connor, Richard. The Oil Barons: Men of Greed and Grandeur. Boston [u.a.]: Little, Brown, 1971.

MLA (9th ed.) Citation

O'Connor, Richard. The Oil Barons: Men of Greed and Grandeur. Little, Brown, 1971.