000 | 00321nam a2200121Ia 4500 | ||
---|---|---|---|
008 | 210324s1970 xx 000 0 und d | ||
082 |
_a503 _bMCG-70 |
||
100 |
_aMc Graw HHill. _9335676 |
||
245 | _aYear book of science and technology, 1970. | ||
260 | _c1970 | ||
650 |
_aYearbook _9335677 |
||
700 |
_aN.A. _9335678 |
||
999 |
_c279108 _d279108 |