APA

American Petroleum Institute A., Institute of Petroleum & Institute of Petroleum. (2007). Guidance in the cleaning of aviation fuel hydrant system at airports. Washington: American Petroleum Institute, API.

Chicago

American Petroleum Institute API, Institute of Petroleum and Institute of Petroleum. 2007. Guidance in the cleaning of aviation fuel hydrant system at airports. Washington: American Petroleum Institute, API.

Harvard

American Petroleum Institute A., Institute of Petroleum and Institute of Petroleum. (2007). Guidance in the cleaning of aviation fuel hydrant system at airports. Washington: American Petroleum Institute, API.

MLA

American Petroleum Institute API, Institute of Petroleum and Institute of Petroleum. Guidance in the cleaning of aviation fuel hydrant system at airports. Washington: American Petroleum Institute, API. 2007.