APA
American Petroleum Institute A., . (2003). Security for offshore oil and natural gas operations. Washington: American Petroleum Institute, API.
Chicago
American Petroleum Institute API, . 2003. Security for offshore oil and natural gas operations. Washington: American Petroleum Institute, API.
Harvard
American Petroleum Institute A., . (2003). Security for offshore oil and natural gas operations. Washington: American Petroleum Institute, API.
MLA
American Petroleum Institute API, . Security for offshore oil and natural gas operations. Washington: American Petroleum Institute, API. 2003.