APA (7th ed.) Citation

Barnes, A. L. (1968). A feasibility study of an in situ retorting process for oil shale. [publisher not identified].

Chicago Style (17th ed.) Citation

Barnes, Allen Lawrence. A Feasibility Study of an in Situ Retorting Process for Oil Shale. [Place of publication not identified]: [publisher not identified], 1968.

MLA (9th ed.) Citation

Barnes, Allen Lawrence. A Feasibility Study of an in Situ Retorting Process for Oil Shale. [publisher not identified], 1968.