机读格式显示(MARC)
- 000 00844cam 2200253 a 4500
- 008 19910614s1977 dcua b f00010 eng
- 099 __ |a CAL 022000380378 |a CAL 022000815126
- 110 1_ |a United States Department of Agriculture.
- 245 12 |a A guide to energy savings for the field crops producer / |c USDA.
- 260 __ |a Washington, D.C. : |b USDA., |c 1977.
- 300 __ |a ii, 58 p. : |b ill. ; |c 26 cm.
- 504 __ |a Bibliography: p. 57-58.
- 650 _0 |a Energy conservation |x Handbooks, manuals, etc.
- 905 __ |a CAU |f TK01-21/USD:2 |b 41122(or.)
- 907 __ |a CAU |f TK01-21/USD:2 |b 41122(or.)
- 999 __ |t E |A xy1 |a 20060619 14:28:41 |G unknown |g 19980101 |I xy1 |i 20060619 14:28:5