TY  - BOOK
AU  - Duesenberry,james Stemble
AU  - Preston,Lee E.
TI  - Cases and problems in economics
U1  - 330.076 
PY  - 1960///
CY  - Englewood Cliffs, N.J.
PB  - Prentice-Hall
KW  - EJERCICIOS DE ECONOMIA
ER  -