TY - RPRT TI - Computerization of welding information AU - Siewert, T A AU - Siewert, T A AU - Jones, J E AU - Ziegenfuss, H G PY - 1990 PB - National Institute of Standards and Technology CY - Gaithersburg, MD SN - NIST SP 781 DO - 10.6028/NIST.SP.781 ER -