TY  - BOOK
ED  - International Congress of the International Union for the Philosophy of Science(2nd : 1954 : Zurich)
ED  - International Congress of the International Union for the Philosophy of Science
TI  - Proceedings
U1  - 506.21 
PY  - 1955///
CY  - Neuchatel,Suisse
PB  - Editions du Griffon
N1  - No 1 : Plenary sessions
ER  -