000 00329nam a2200121Ia 4500
008 140113s9999 xx 000 0 und d
082 _a020 L7
100 _a"Davidson, Donald."
245 _aThesis and dessertations : An Information sources
260 _a1977
_bClive Bing & Linnet books
_cLondon
300 _a88
942 _cBK
999 _c59985
_d59985