00620cam a22002291 4500 af 47006997 DLC 20260227110840.0 901105s1946 ne 000 0 dut c af 47006997 (OCoLC)22632566 Chicago. Univ. Library NNC NNC DLC premarc BD331 .L82 Loen, Arnold E. (Arnold Ewout), 1896- De vaste grond. Amsterdam, H.J. Paris, 1946. vii, 332 p. 25 cm. Ontology. Knowledge, Theory of. Christianity Philosophy. 3789 3789