APA
American Petroleum Institute A., . (2008). Progressing cavity pump systems for artificial lift -surface-drive systems. Washington: American Petroleum Institute, API.
Chicago
American Petroleum Institute API, . 2008. Progressing cavity pump systems for artificial lift -surface-drive systems. Washington: American Petroleum Institute, API.
Harvard
American Petroleum Institute A., . (2008). Progressing cavity pump systems for artificial lift -surface-drive systems. Washington: American Petroleum Institute, API.
MLA
American Petroleum Institute API, . Progressing cavity pump systems for artificial lift -surface-drive systems. Washington: American Petroleum Institute, API. 2008.