APA
American Petroleum Institute A., . (2018). Blowout prevention equipment systems for drilling wells. Washington: American Petroleum Institute, API.
Chicago
American Petroleum Institute API, . 2018. Blowout prevention equipment systems for drilling wells. Washington: American Petroleum Institute, API.
Harvard
American Petroleum Institute A., . (2018). Blowout prevention equipment systems for drilling wells. Washington: American Petroleum Institute, API.
MLA
American Petroleum Institute API, . Blowout prevention equipment systems for drilling wells. Washington: American Petroleum Institute, API. 2018.