APA
American Petroleum Institute A., . (2007). Heat recovery steam generators. Washington: American Petroleum Institute, API.
Chicago
American Petroleum Institute API, . 2007. Heat recovery steam generators. Washington: American Petroleum Institute, API.
Harvard
American Petroleum Institute A., . (2007). Heat recovery steam generators. Washington: American Petroleum Institute, API.
MLA
American Petroleum Institute API, . Heat recovery steam generators. Washington: American Petroleum Institute, API. 2007.