APA

American Petroleum Institute A., . (2005). Security guidelines for the petroleum industry. Washington: American Petroleum Institute, API.

Chicago

American Petroleum Institute API, . 2005. Security guidelines for the petroleum industry. Washington: American Petroleum Institute, API.

Harvard

American Petroleum Institute A., . (2005). Security guidelines for the petroleum industry. Washington: American Petroleum Institute, API.

MLA

American Petroleum Institute API, . Security guidelines for the petroleum industry. Washington: American Petroleum Institute, API. 2005.