APA
American Petroleum Institute A., . (2015). Evaluation and testing of mechanical cement wiper plugs. Washington: American Petroleum Institute, API.
Chicago
American Petroleum Institute API, . 2015. Evaluation and testing of mechanical cement wiper plugs. Washington: American Petroleum Institute, API.
Harvard
American Petroleum Institute A., . (2015). Evaluation and testing of mechanical cement wiper plugs. Washington: American Petroleum Institute, API.
MLA
American Petroleum Institute API, . Evaluation and testing of mechanical cement wiper plugs. Washington: American Petroleum Institute, API. 2015.
