Advanced bearing technology: by E. E. Bisson and W. J. Anderson, Lewis Research Center, Cleveland, Ohio; National Aeronautics and Space Administration, Washington, D.C., 1964, NASA SP-38. For sale by the Superintendent of Documents, U.S. Government Printing Office, Washington, D.C., 20402; 511 pp.; numerous figures and tables; 16 × 23 cm; price: $ 1.75 (paper-bound); cloth-bound copy also available