TY  - BOOK
AU  - Black, John D.
AU  - Clawson, Marion
AU  - Sayre, Charles R.
TI  - Farm management
U1  - 631 
PY  - 1953///
CY  - New York
PB  - The Macmillan Compny
KW  - Agriculture and related technologies
KW  - Technology (Applied sciences)
KW  - Farm management
ER  -