Persistent identifier https://phaidra.univie.ac.at/o:1683855
Handle https://hdl.handle.net/11353/10.1683855
URI https://valep.vc.univie.ac.at/virtualarchive/public/Quine_to_Fred_Wieck_University_of_Chicago_Press_1947-04-22_L_Original/dv:951403