directors of research and editors, Arthur A. Bright, Jr., George H. Ellis ; staff economists, William H. Miernyk, Ray S. Kelley, Jr., Edward K. Smith ; contributing economists, John H. Bragg, Robert A. Nelson
sponsored by the Pressure Vessels and Piping Division, ASME ; principal editors, A. C. Smith, R.S. Hafner ; contributing editors, N. K. Gupta, S. J. Hensel, R. B. Rebak
