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| 008 | 971013c19651960 r 00010 d | ||
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_aJans, Fred C. _961054 |
| 245 | 1 | 3 | _aEl servicio de extensión agrícola examina la planeación de programas |
| 260 |
_aMéxico, D.F., : _bCentro Regional de Ayuda Técnica, _c1965 (c.1960) |
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_a13 p. _b: ilus |
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_aBATCH-UPD _b10 _c20130110 _lUCH01 _h1916 |
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| 650 | 1 | 4 |
_aExtensión agrícola. _939144 |
| 710 | 0 |
_aE.U.A. Department of Agriculture. _934876 |
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