机读格式显示(MARC)

• 000 01055cam a2200241 a 4500

• 001 0000315608

• 005 20191003160600.0

• 008 800812m19561958miua b 000 0 eng d

• 020 __ |c CNY3.60 (Pt. 1-2)

• 040 __ |a TXA |c TXA |d WMC

• 090 __ |a S219/DAT

• 093 __ |a S219 |2 5

• 245 00 |a Development of the agricultural tractor in the United States / |c compiled by R.B. Gray.

• 260 __ |a [St. Joseph, Mich. : |b American Society of Agricultural Engineers, |c 1956-1958.

• 300 __ |a 1 v. : |b ill. ; |c 29 cm.

• 490 0_ |a United States. Agricultural Research Service. Agricultural Engineering Research Branch. Information series ; |v no. 107

• 500 __ |a Cover title.

• 500 __ |a A limited ed. was compiled and printed by the Agricultural Engineering Research Branch, Agricultural Research Service in 1954.

• 650 _0 |a Tractors |x History.

• 650 _0 |a Agricultural machinery |x History.

• 700 1_ |a Gray, R. B. |q (Roy Burton), |d b. 1884.

• 710 1_ |a United States. |b Agricultural Research Service. |b Agricultural Engineering Research Branch.

• 920 __ |a 211180 |z 1