机读格式显示(MARC)
- 000 00735cam a2200217 a 4500
- 008 730607s1973 us b 00110 eng
- 090 __ |a S157.4-53/AER/(1970)/V.223
- 099 __ |a CAL 022000284998 |a CAL 021999619903
- 245 00 |a For presentation at the 1970 winter meeting american society of agricultural engineers. |n NO.223 / |c Henry H. Kaufmann.
- 260 __ |a Chicago : |b Wiley, |c 1970.
- 300 __ |a 1 v. : |b ill. ; |c 28 cm.
- 650 _0 |a Agricultural engineering.
- 700 1_ |a Kaufmann, Henry H.
- 710 2_ |a Agricultural Engineering Research Division ARS,U.S.Department of Agriculture.