TY  - GEN
AU  - LAER, Peter Henry van, 1906-
TI  - Philosophico-scientific problems
AV  - B 67 .L3 
PY  - 1953///
CY  - Pittsburgh, Pa.
PB  - Duquesne University Press
KW  - Scholasticism
KW  - Metaphysics
KW  - Science--Philosophy
N1  - No 3
ER  -