APA

Burwell E., Sterner T., United States of America. Department of the Interior & Sterner T. (1973). In situ retorting of oil shale. United States of America: Bureau of Mines.

Chicago

Burwell E.L, Sterner T.E, United States of America. Department of the Interior and Sterner T.E. 1973. In situ retorting of oil shale. United States of America: Bureau of Mines.

Harvard

Burwell E., Sterner T., United States of America. Department of the Interior and Sterner T. (1973). In situ retorting of oil shale. United States of America: Bureau of Mines.

MLA

Burwell E.L, Sterner T.E, United States of America. Department of the Interior and Sterner T.E. In situ retorting of oil shale. United States of America: Bureau of Mines. 1973.