TY  - BOOK
AU  - Sayward,Frederick G.
AU  - Shaw,Mary
AU  - Perlis,Alan
TI  - Software metrics: an analysis and evaluation 
SN  - 0262160838
PY  - 1981///
CY  - Cambridge
PB  - MIT Press
KW  - Computer programs
KW  - Evaluation
N1  - Includes bibliographies
ER  -