TY  - BOOK
AU  - Birchenhall,Chris
AU  - Grout,Paul
TI  - Mathematics for modern economics
SN  - 0860030237.
CY  - New York, London
PB  - P. Allan,1984.
KW  - Economics, Mathematical
N1  - Includes index; Includes bibliographical references: p.406-408
ER  -