248 pages
German language
Published July 27, 1935 by J. Springer.
Zur Erkenntnistheorie der modernen Naturwissenschaft Schriften zur wissenschaftlichen Weltauffassung,

Karl Popper: Logik der Forschung (German language, 1935, J. Springer)
248 pages
German language
Published July 27, 1935 by J. Springer.