Letter / Issued Document - Letter
o:1747159
Persistent identifier https://phaidra.univie.ac.at/o:1747158
Handle https://hdl.handle.net/11353/10.1747158
URI https://valep.vc.univie.ac.at/virtualarchive/public/Carnap_to_Basic_Books_Inc_1967-04-26_L/d:940220