APA

American Petroleum Institute A., . (2006). Procedures for overwing fuelling to ensure delivery of the correct fuel grade to an aircraft. Washington: American Petroleum Institute, API.

Chicago

American Petroleum Institute API, . 2006. Procedures for overwing fuelling to ensure delivery of the correct fuel grade to an aircraft. Washington: American Petroleum Institute, API.

Harvard

American Petroleum Institute A., . (2006). Procedures for overwing fuelling to ensure delivery of the correct fuel grade to an aircraft. Washington: American Petroleum Institute, API.

MLA

American Petroleum Institute API, . Procedures for overwing fuelling to ensure delivery of the correct fuel grade to an aircraft. Washington: American Petroleum Institute, API. 2006.