TY  - BOOK
AU  - Peston Maurice H
TI  - Elementary matrices for economics
T2  - Students Library of Economics. Ed by MH Peston
U1  - B245obx, K9 
PY  - 1969///
CY  - London
PB  - Routledge & Kegan Paul       
N1  - Bibliography P 109-11
ER  -