Cita APA (7th ed.)

ebrary, Inc, & Kelleher, N. B. (2012). U.S. oil sources: Turmoil and tranquility. Nova Science Publishers.

Cita Chicago (17th ed.)

ebrary, Inc, i Natalie B. Kelleher. U.S. Oil Sources: Turmoil and Tranquility. Hauppauge, N.Y.: Nova Science Publishers, 2012.

Cita MLA (9th ed.)

ebrary, Inc, i Natalie B. Kelleher. U.S. Oil Sources: Turmoil and Tranquility. Nova Science Publishers, 2012.