TY  - BOOK
AU  - Henderson, J. Vernon
AU  - Poole, William 
TI  - Principles of economics
SN  - 0669144916
U1  - 330 
PY  - 1991///
CY  - Lexington, Massachusetts
PB  - D.C. Heath
KW  - Economics
N1  - Includes glossary and index; 300-399
ER  -