000 00361nam a2200145Ia 4500
008 191206s9999 xx 000 0 und d
020 _a41327
090 _aPR1R32
245 0 _aAriel
250 _aVOL 10 NUMBER II
260 _aUniversity of Calgary.
260 _cc1979
300 _av. 22 cm.
999 _c15485
_d15485