APA
Warner J. S., American Petroleum Institute A. & Warner J. S. (1978). Chemical characterization of marine samples. Washington: American Petroleum Institute, API.
Chicago
Warner J S, American Petroleum Institute API and Warner J S. 1978. Chemical characterization of marine samples. Washington: American Petroleum Institute, API.
Harvard
Warner J. S., American Petroleum Institute A. and Warner J. S. (1978). Chemical characterization of marine samples. Washington: American Petroleum Institute, API.
MLA
Warner J S, American Petroleum Institute API and Warner J S. Chemical characterization of marine samples. Washington: American Petroleum Institute, API. 1978.