TY  - BOOK
AU  - Gray,James R.
TI  - Ranch economics / 
U1  - 338.176 GRA 
PY  - 1968///
CY  - Ames 
PB  - Iowa State University Press , 
KW  - Cattle
KW  - United States
KW  - Sheep
KW  - Rangerlands
N1  -  Includes bibliographical references
ER  -