00373nam a2200133Ia 4500008004100000082001700041100001700058245003300075260005700108300000800165650003100173650001800204653001700222170901s1965    xx            000 0 und d  a560.45bH49I  aHecker, R.F. 0aIntroduction to Paleoecology  aNew YorkbAmerican Elsevier Publishing Companyc1965  a166  aPaleontology/ Paleozoology  aPure Sciences  aPaleoecology