APA
American Petroleum Institute A., . (19962002). Introduction to oil and gas production. Dallas, Texas: American Petroleum Institute, API.
Chicago
American Petroleum Institute API, . 19962002. Introduction to oil and gas production. Dallas, Texas: American Petroleum Institute, API.
Harvard
American Petroleum Institute A., . (19962002). Introduction to oil and gas production. Dallas, Texas: American Petroleum Institute, API.
MLA
American Petroleum Institute API, . Introduction to oil and gas production. Dallas, Texas: American Petroleum Institute, API. 19962002.