000 00290nam a2200097Ia 4500
100 _aThomas F C & Hasen R A
245 _aFifteen Hundred References for Jurassic & Lower Cretaceous Foraminifera
260 _bGeol Surevey of Canada, Canada
082 _aH6a/N90/B18071
300 _app 113; 28*22
999 _c1440
_d1440