000 00281nam a2200109Ia 4500
001 82621
008 170722s9999 xx 000 0 und d
100 _aDunphy, Dexter C.
245 _aPrimary group.
_bA Hand book for analysis and field research. /
260 _c1972.
942 _cGEN
999 _c84226
_d84226