APA
American Petroleum Institute A., . (1996). Natural attenuation processes. Washington: American Petroleum Institute, API.
Chicago
American Petroleum Institute API, . 1996. Natural attenuation processes. Washington: American Petroleum Institute, API.
Harvard
American Petroleum Institute A., . (1996). Natural attenuation processes. Washington: American Petroleum Institute, API.
MLA
American Petroleum Institute API, . Natural attenuation processes. Washington: American Petroleum Institute, API. 1996.