APA
American Petroleum Institute A., . (1991). Recommended practice for design and installation of offshore production platform piping systems. Washington: American Petroleum Institute, API.
Chicago
American Petroleum Institute API, . 1991. Recommended practice for design and installation of offshore production platform piping systems. Washington: American Petroleum Institute, API.
Harvard
American Petroleum Institute A., . (1991). Recommended practice for design and installation of offshore production platform piping systems. Washington: American Petroleum Institute, API.
MLA
American Petroleum Institute API, . Recommended practice for design and installation of offshore production platform piping systems. Washington: American Petroleum Institute, API. 1991.