APA
American Petroleum Institute A., . (2017). Threading and gauging of rotary shouldered connections. Washington: American Petroleum Institute, API.
Chicago
American Petroleum Institute API, . 2017. Threading and gauging of rotary shouldered connections. Washington: American Petroleum Institute, API.
Harvard
American Petroleum Institute A., . (2017). Threading and gauging of rotary shouldered connections. Washington: American Petroleum Institute, API.
MLA
American Petroleum Institute API, . Threading and gauging of rotary shouldered connections. Washington: American Petroleum Institute, API. 2017.