Style de citation APA (7e éd.)

Não informado. (2001). Western oil and refining. Palmer Publications.

Style de citation Chicago (17e éd.)

Não informado. Western Oil and Refining. Los Angeles, Calif: Palmer Publications, 2001.

Style de citation MLA (8e éd.)

Não informado. Western Oil and Refining. Palmer Publications, 2001.

Attention : ces citations peuvent ne pas être correctes à 100%.