TY  - RPRT
TI  - Software tools 
AU  - Hardy, I Trotter
AU  - Leong-Hong, Belkis
AU  - Fife, Dennis W
PY  - 1977
PB  - National Bureau of Standards
CY  - Gaithersburg, MD
SN  - NBS SP 500-14
DO  - 10.6028/NBS.SP.500-14
ER  -