TY - GEN AU - Belkis Leong-Hong AU - Beatrice Marron C2 - , National Institute of Standards and Technology, Gaithersburg, MD DA - 1978-01-01 05:01:00 DO - https://doi.org/10.6028/NBS.SP.500-28 LA - en PB - , National Institute of Standards and Technology, Gaithersburg, MD PY - 1978 TI - Database administration: ER -