APA
American Petroleum Institute A., . (2014). Cathodic protection of aboveground petroleum storage tanks. Washington: American Petroleum Institute, API.
Chicago
American Petroleum Institute API, . 2014. Cathodic protection of aboveground petroleum storage tanks. Washington: American Petroleum Institute, API.
Harvard
American Petroleum Institute A., . (2014). Cathodic protection of aboveground petroleum storage tanks. Washington: American Petroleum Institute, API.
MLA
American Petroleum Institute API, . Cathodic protection of aboveground petroleum storage tanks. Washington: American Petroleum Institute, API. 2014.