TY  - GEN
AU  - Lipsey, Richard  G.
AU  - Chrystal,K.Alec
TI  - Principles of economics
SN  - 9780198746577
U1  - 330.1 
PY  - 1999///
CY  - New York
PB  - Oxford
KW  - Economics
N1  - Economics , International 13th ed, 2015, 612 p
ER  -