TY  - BOOK
AU  - NICHOLSON Walter
TI  - Microeconomic theory:  Basic principles and extensions   
T2  - Dryden Press Series in Economics
SN  - 0030701899
U1  - X:71, M5 
PY  - 1985///
CY  - Chicago
PB  - Dryden Press         
KW  - Microeconomics
ER  -