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| 003 | CL-ChBUA | ||
| 005 | 20120815102702.0 | ||
| 008 | 070301s1965 ag 000 0 spa | ||
| 040 | |a CL-ChBUA |c CL-ChBUA | ||
| 082 | 0 | 0 | |a 001.42 |
| 090 | |c 401 |d 401 | ||
| 100 | 1 | |a Alva, Alcides J. | |
| 245 | 1 | 0 | |a Elementos de investigación general |
| 260 | |b S.E.M. |c 1965. | ||
| 300 | |a 40 p. |c 28 cm. | ||
| 650 | 4 | |a INVESTIGACIONES - METODOLOGIA. | |
| 942 | |c LIB | ||
| 952 | |0 0 |1 0 |4 0 |7 0 |9 427 |a UNACH |b UNACH |c 000 |d 2007-03-05 |i 9.133. |l 1 |o 001.42 / Al 472. 1965 |p 1426 |r 2022-01-04 00:00:00 |s 2014-04-04 |u 427 |w 2012-08-08 |y LIB |k 001.42 / Al 472. 1965 | ||
| 999 | |c 401 |d 401 | ||