APA

American Petroleum Institute A., . (2009). Fitness - for - service. Example problem manual. Washington: American Petroleum Institute, API.

Chicago

American Petroleum Institute API, . 2009. Fitness - for - service. Example problem manual. Washington: American Petroleum Institute, API.

Harvard

American Petroleum Institute A., . (2009). Fitness - for - service. Example problem manual. Washington: American Petroleum Institute, API.

MLA

American Petroleum Institute API, . Fitness - for - service. Example problem manual. Washington: American Petroleum Institute, API. 2009.