000			00639nas a2200169 a 4500
008			230908u1970 gw ||||| |||| 00| 0 eng d
022	0	0	_a0341615x
245	0	0	_aEconomics /
260	0	0	_aGermany : _bInstitute for Scientific Co-Coperation ; _c1970 -
300	0	0	_av.
650	0	4	_aECONOMÍA _9706
650	0	4	_aEXTENSIÓN RURAL _97661
710	0	0	_aInstitute for Scientific Co-Operation _97086
866	0	0	_a1970 v.1; 1970 v.2; 1971 v.3; 1971 v.4; 1972 v.5; 1972 v.6; 1973 v.7; 1973 v.8; 1974 v.9; 1974 v.10; 1975 v.12; 1976 v.13; 1976 v.14; 1977 v.15; 1977 v.16; 1978 v.17; 1978 v.18; 1979 v.19
942	0	0	_2ddc _cREVISTAS
999			_c4287 _d4287