APA
American Petroleum Institute A., . (2001). Design and construction of LPG installations. Washington: American Petroleum Institute, API.
Chicago
American Petroleum Institute API, . 2001. Design and construction of LPG installations. Washington: American Petroleum Institute, API.
Harvard
American Petroleum Institute A., . (2001). Design and construction of LPG installations. Washington: American Petroleum Institute, API.
MLA
American Petroleum Institute API, . Design and construction of LPG installations. Washington: American Petroleum Institute, API. 2001.