机读格式显示(MARC)

• 000 00644cam a2200229 a 4500

• 001 0000572381

• 005 20191005130700.0

• 008 710419s1971 nyua bs 001 0 eng

• 020 __ |c CNY10.00

• 040 __ |a CAU |c CAU

• 050 00 |a HB74.M3 |b K534

• 082 0_ |a 330/.028 |2 19

• 090 __ |a F306/MJG

• 093 __ |a F306 |2 5

• 100 1_ |a Gibbons, Michael J.

• 245 10 |a Agriculural extension / |c Richard J.Gibbons.

• 260 __ |a New York : |b Macmillan, |c 1971.

• 300 __ |a 309 p. : |b ill. ; |c 24 cm.

• 490 0_ |a Macmillan series in economics

• 504 __ |a Includes bibliographical references and index.

• 650 _0 |a Agriculural extension.

• 920 __ |a 211180 |z 1