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050201s1973||||xxua |||||||||||||eng|| |
| 041 |
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|a eng
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| 082 |
|
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|a 301.31071073
|b H393e
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| 100 |
|
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|a Hawkins, Donald E.
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| 700 |
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|a Viton, Dennis A.
|e coautor
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| 245 |
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|a The Environmental classroom /
|c Dennis A. Vinton, coaut..
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| 260 |
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|a Englewood Cliffs :
|b Prentice-Hall,
|c 1973
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| 300 |
|
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|a 374 p. ;
|b il
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| 650 |
|
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|a PROTECCION DEL MEDIO AMBIENTE
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| 650 |
|
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|a CONSERVACION DE LA NATURALEZA
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| 991 |
|
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|a No asignado
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| 992 |
|
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|a 21/01/2009
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| 942 |
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|c BK
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| 999 |
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|c 48722
|d 48722
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| 952 |
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|0 1
|1 0
|4 0
|6 301_310710730000000_H393E
|7 0
|8 CG
|9 80842
|a 10
|b 10
|c CG
|d 2012-08-16
|i 10003746
|o 301.31071073 H393e
|p 10003746
|r 2012-08-16
|t 1
|w 2012-08-16
|y BK
|