APA

American Petroleum Institute A., . (2006). Recommended practice for purchaser representative surveillance and/or inspection at the supplier. Washington: American Petroleum Institute, API.

Chicago

American Petroleum Institute API, . 2006. Recommended practice for purchaser representative surveillance and/or inspection at the supplier. Washington: American Petroleum Institute, API.

Harvard

American Petroleum Institute A., . (2006). Recommended practice for purchaser representative surveillance and/or inspection at the supplier. Washington: American Petroleum Institute, API.

MLA

American Petroleum Institute API, . Recommended practice for purchaser representative surveillance and/or inspection at the supplier. Washington: American Petroleum Institute, API. 2006.