APA
American Petroleum Institute A., . (1987). Capability of EPA methods 624 and 625 to measure appendix IX compounds. Washington: American Petroleum Institute, API.
Chicago
American Petroleum Institute API, . 1987. Capability of EPA methods 624 and 625 to measure appendix IX compounds. Washington: American Petroleum Institute, API.
Harvard
American Petroleum Institute A., . (1987). Capability of EPA methods 624 and 625 to measure appendix IX compounds. Washington: American Petroleum Institute, API.
MLA
American Petroleum Institute API, . Capability of EPA methods 624 and 625 to measure appendix IX compounds. Washington: American Petroleum Institute, API. 1987.