| 000 | 00597cam a22002172a 4500 | ||
|---|---|---|---|
| 001 | 000931 | ||
| 003 | AR-FADEU | ||
| 008 | 311216n1973####xxu####################dd | ||
| 020 | _a950-518-042-X | ||
| 092 |
_a001.420 724 _bC187 |
||
| 100 | _aCampbell, Donald T. | ||
| 245 | _aDiseños experimentales y cuasiexperimentales en la investigación social | ||
| 260 | _aBuenos Aires | ||
| 260 | _bAmorrortu | ||
| 260 | _c1973-78 | ||
| 300 | _a158 p | ||
| 440 | _aBiblioteca de sociología | ||
| 700 | _aJulián, Stanley | ||
| 650 | _aINVESTIGACION SOCIAL; DISENO EXPERIMENTAL | ||
| 942 | _cBDGR | ||
| 999 |
_c6771 _d6771 |
||