APA

American Petroleum Institute A., . (2010). Reconditioning of metallic gate, globe, and check valves. Washington: American Petroleum Institute, API.

Chicago

American Petroleum Institute API, . 2010. Reconditioning of metallic gate, globe, and check valves. Washington: American Petroleum Institute, API.

Harvard

American Petroleum Institute A., . (2010). Reconditioning of metallic gate, globe, and check valves. Washington: American Petroleum Institute, API.

MLA

American Petroleum Institute API, . Reconditioning of metallic gate, globe, and check valves. Washington: American Petroleum Institute, API. 2010.