APA (7th ed.) Citation

American Gas Association. Library Services Committee. (1977). Energy statistics: North American and world sources. American Gas Association.

Chicago Style (17th ed.) Citation

American Gas Association. Library Services Committee. Energy Statistics: North American and World Sources. Arlington, Va.: American Gas Association, 1977.

MLA (9th ed.) Citation

American Gas Association. Library Services Committee. Energy Statistics: North American and World Sources. American Gas Association, 1977.