41
Gill, William R.
Soil dynamics in tillage and traction
]Washington[
Agricultural Research Service, U.S. Dept. of Agriculture; ]for sale by the Supt. of Docs., U.S. Govt. Print. Off[
]1967[
viii, 511p.: ill
U.S. Dept. of Agriculture. Agriculture handbook; no.613
Bibliography: p. 460-487
Includes index
by William R. Gill and Glen E. Vanden Berg
، Soil physics
، Tillage
، Tractors
S
591
.
G55
AU
AU Vanden Berg, Glen E.
TI
SE
SH
