Twentieth century petroleum statistics.

APA Citation

United States. Office of Naval Petroleum and Oil Shale Reserves., DeGolyer and MacNaughton. Twentieth century petroleum statistics. Dallas: DeGolyer and MacNaughton.

MLA Citation

United States. Office of Naval Petroleum and Oil Shale Reserves, and DeGolyer and MacNaughton. Twentieth Century Petroleum Statistics. Dallas: DeGolyer and MacNaughton,

Warning: These citations may not always be complete (especially for serials).