APA

Harak A., Dockter L., United States of America. Department of the Interior & Dockter L. (1971). Some results from the operation of a 150 - ton oil shale retort. United States of America: Bureau of Mines.

Chicago

Harak A.E, Dockter L, United States of America. Department of the Interior and Dockter L. 1971. Some results from the operation of a 150 - ton oil shale retort. United States of America: Bureau of Mines.

Harvard

Harak A., Dockter L., United States of America. Department of the Interior and Dockter L. (1971). Some results from the operation of a 150 - ton oil shale retort. United States of America: Bureau of Mines.

MLA

Harak A.E, Dockter L, United States of America. Department of the Interior and Dockter L. Some results from the operation of a 150 - ton oil shale retort. United States of America: Bureau of Mines. 1971.