TY  - BOOK
AU  - Roberts,Roy W
TI  - Modern farming
AV  - S495 .R68
U1  - 630.973 
PY  - 1950///]
CY  - Philadelphia
PB  - Lippincott
KW  - Agriculture
KW  - United States
N1  - "References" at end of each chapter
ER  -