APA

Babcock R., Conway D. D., American Petroleum Institute A., Babcock R. & Conway D. D. (1984). Proceedings : Sampling and analytical methods for determining petroleum hydrocarbons in groundwater and soil. Washington: American Petroleum Institute, API.

Chicago

Babcock R, Conway D D, American Petroleum Institute API, Babcock R and Conway D D. 1984. Proceedings : Sampling and analytical methods for determining petroleum hydrocarbons in groundwater and soil. Washington: American Petroleum Institute, API.

Harvard

Babcock R., Conway D. D., American Petroleum Institute A., Babcock R. and Conway D. D. (1984). Proceedings : Sampling and analytical methods for determining petroleum hydrocarbons in groundwater and soil. Washington: American Petroleum Institute, API.

MLA

Babcock R, Conway D D, American Petroleum Institute API, Babcock R and Conway D D. Proceedings : Sampling and analytical methods for determining petroleum hydrocarbons in groundwater and soil. Washington: American Petroleum Institute, API. 1984.