APA

American Petroleum Institute A., . (2015). Specification for subsurface sucker rod pump assemblies, components, and fittings. Washington: American Petroleum Institute, API.

Chicago

American Petroleum Institute API, . 2015. Specification for subsurface sucker rod pump assemblies, components, and fittings. Washington: American Petroleum Institute, API.

Harvard

American Petroleum Institute A., . (2015). Specification for subsurface sucker rod pump assemblies, components, and fittings. Washington: American Petroleum Institute, API.

MLA

American Petroleum Institute API, . Specification for subsurface sucker rod pump assemblies, components, and fittings. Washington: American Petroleum Institute, API. 2015.