TY  - BOOK
AU  - Vaughan,Lawrence Moore
AU  - Hardin,Lowell Stewart
TI  - Farm work simplification
AV  - S561 .V3
U1  - 631.1 
PY  - 1949///]
CY  - New York
PB  - J. Wiley
N1  - "This publication is jointly sponsored by the work simplification committees of the American Farm Economic Association and the American Society of Agricultural Engineers."; "Further reading" at the end of each chapter
ER  -