TY  - BOOK
AU  - Kinsman,C.D.
AU  - Reynoldson,L.A.
AU  - Reed,I.F.
TI  - Laying out fields for tractor plowing
T2  - Farmers' bulletin / United States Department of Agriculture
AV  - S21 .A6 rev. no. 1045b
U1  - (630.6173)631.512 
PY  - 1945///
CY  - Washington, D.C.
PB  - U.S. Dept. of Agriculture
KW  - Plowing
N1  - Original edition, May 1919, by H.R. Tolley.  Issued by Office of Farm Management.  The present edition revised by I.F. Reed
ER  -