APA

American Petroleum Institute A., . (1980). Cost and cost effectiveness of NOx control in petroleum industry operations. Washington: American Petroleum Institute, API.

Chicago

American Petroleum Institute API, . 1980. Cost and cost effectiveness of NOx control in petroleum industry operations. Washington: American Petroleum Institute, API.

Harvard

American Petroleum Institute A., . (1980). Cost and cost effectiveness of NOx control in petroleum industry operations. Washington: American Petroleum Institute, API.

MLA

American Petroleum Institute API, . Cost and cost effectiveness of NOx control in petroleum industry operations. Washington: American Petroleum Institute, API. 1980.