TY  - RPRT
TI  - A preliminary design of a data retrieval language to handle a generalized data base : DRL
AU  - Fong, Elizabeth
PY  - 1971
PB  - National Bureau of Standards
CY  - Gaithersburg, MD
SN  - NBS TN 590
DO  - 10.6028/NBS.TN.590
ER  -