TY  - BOOK
AU  - John Donald Black
TI  - Introduction to economics for agricultural
U1  - 338.1 
PY  - 1953///
CY  - New York
PB  - The Macmillan Co
N1  - John Donald Black: Introduction to economics for agricultural.  New York.  The Macmillan Co, 1953.--(338.1BLA)
ER  -