APA

American Petroleum Institute A., . (2004). Recommended Practice for ultrasonic and magnetic examination of offshore structural fabrication and guidelines for qualification of technicians. Washington: American Petroleum Institute, API.

Chicago

American Petroleum Institute API, . 2004. Recommended Practice for ultrasonic and magnetic examination of offshore structural fabrication and guidelines for qualification of technicians. Washington: American Petroleum Institute, API.

Harvard

American Petroleum Institute A., . (2004). Recommended Practice for ultrasonic and magnetic examination of offshore structural fabrication and guidelines for qualification of technicians. Washington: American Petroleum Institute, API.

MLA

American Petroleum Institute API, . Recommended Practice for ultrasonic and magnetic examination of offshore structural fabrication and guidelines for qualification of technicians. Washington: American Petroleum Institute, API. 2004.