000 | 00307nam a2200109Ia 4500 | ||
---|---|---|---|
008 | 220421s1991 xx 000 0 und d | ||
041 | _aeng | ||
082 |
_a500 _bRAO/SCI |
||
100 |
_aRao ,Digumarti Bhaskara. _9571436 |
||
245 | _aScience and Technology Education | ||
260 |
_aNew Jersey _b Prentice Hall _c1991 |
||
999 |
_c397663 _d397663 |