TY  - BOOK
AU  - Calvo Peter
AU  -  Waugh Geoffrey
TI  - Microeconomics:  An Introductory text   
SN  - 0 07 093432 0
U1  - X:71, L7 
PY  - 1977///
CY  - Sydney
PB  - Mcgraw-Hill Book Company        
ER  -