APA
American Petroleum Institute A., . (1997). Effects of smooth and rock dents on liquid petroleum pipelines. Washington: American Petroleum Institute, API.
Chicago
American Petroleum Institute API, . 1997. Effects of smooth and rock dents on liquid petroleum pipelines. Washington: American Petroleum Institute, API.
Harvard
American Petroleum Institute A., . (1997). Effects of smooth and rock dents on liquid petroleum pipelines. Washington: American Petroleum Institute, API.
MLA
American Petroleum Institute API, . Effects of smooth and rock dents on liquid petroleum pipelines. Washington: American Petroleum Institute, API. 1997.