TY  - RPRT
TI  - Guidelines for exchangeable APT data packages : APT part programmer's manual
AU  - Smith, Bradford M
PY  - 1980
PB  - National Bureau of Standards
CY  - Gaithersburg, MD
SN  - NBS IR 80-2073.2
DO  - 10.6028/NBS.IR.80-2073.2
ER  -