TY  - BOOK
AU  -  Duncan,Judith
AU  -  Berry,Brian Joe Lobley
AU  -  Conkling,Edgar C.
AU  -  Ray,D.Michael
TI  -  Student guide and workbook to the geography of economic systems, Ber ry, Conkling, Ray / 
SN  -  0133513386
U1  -  330.904 
PY  - 1976///
CY  -  Englewood Cliffs, N.J. : 
PB  -  Prentice-Hall, 
KW  -  Economic geography
ER  -