TY  - BOOK
AU  - Penz,Alton J.
ED  - United States.
TI  - A national index for energy productivity: a study 
U1  - 330.973021 
PY  - 1981///
CY  - Washington, D.C.
PB  - Joint Economic Committee, Congress of the United States
KW  - Energy development
KW  - Economic aspects
KW  - United States
KW  - Mathematical models
KW  - Energy consumption
KW  - Economic indicators
KW  - Index numbers (Economics)
N1  - Authors: Alton Penz and Dennis Bakke; G.P.O. sales statement incorrect in publication
ER  -