History & Philosophy of Science in 1967
Memorial Colloquium: Logic and Foundations of Science Paris, Institut Henri Poincaré, 19-21 May 1964
by
Loparo, Kenneth A., Destouches, Jean Louis, Beth, Evert Willem
Räumliche Vorstellung Und Mathematisches Erkenntnisvermögen: Zweiter Band
by
Verloren Van Themaat, P.
The Mental and the Physical: The Essay and a PostScript
by
Feigl, Herbert
The Nature of Social Science
by
Homans, George C.