Gaya APA

The Story of Oil. (1979). London: [s.n.].

Gaya Chicago

The Story of Oil. Cet. 1. London: [s.n.], 1979. Text.

Gaya MLA

The Story of Oil. Cet. 1. London: [s.n.], 1979. Text.

Gaya Turabian

The Story of Oil. London: [s.n.], 1979. Print.