Summary technical report of Division 6, NDRC :
Volume 10: Basic methods for the calibration of sonar equipment.

APA Citation

United States. Office of Scientific Research and Development. National Defense Research Committee. (1946). Summary technical report of Division 6, NDRC: Volume 10: Basic methods for the calibration of sonar equipment. Washington, D.C..

MLA Citation

United States. Office of Scientific Research and Development. National Defense Research Committee. Summary Technical Report of Division 6, NDRC: Volume 10: Basic Methods for the Calibration of Sonar Equipment. Washington, D.C., 1946.

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