TY - GEN AU - Smith, Bradford C2 - NIST Interagency/Internal Report (NISTIR), National Institute of Standards and Technology, Gaithersburg, MD DA - 1989-01-01 DO - https://doi.org/10.6028/NIST.IR.89-4166 LA - en PB - NIST Interagency/Internal Report (NISTIR), National Institute of Standards and Technology, Gaithersburg, MD PY - 1989 TI - External Representation of Product Definition Data ER -