TY  - BOOK
AU  - "Richard G. Lipsey"," K. Alec Chrystal"," K. Alec Chrystal"
TI  - An introduction to positive economics
SN  - 0297795562
U1  - 330 
PY  - 1995///
CY  - uk
PB  - ,Oxford : ELBS with Oxford University Press, 1995.,London : Weidenfeld and Nicolson, 1989.
ER  -