APA

American Petroleum Institute A., . (2015). Protection against ignitions arising out of static, lightning, and stray currents. Washington: American Petroleum Institute, API.

Chicago

American Petroleum Institute API, . 2015. Protection against ignitions arising out of static, lightning, and stray currents. Washington: American Petroleum Institute, API.

Harvard

American Petroleum Institute A., . (2015). Protection against ignitions arising out of static, lightning, and stray currents. Washington: American Petroleum Institute, API.

MLA

American Petroleum Institute API, . Protection against ignitions arising out of static, lightning, and stray currents. Washington: American Petroleum Institute, API. 2015.