Persistent identifier https://phaidra.univie.ac.at/o:1684218
Handle https://hdl.handle.net/11353/10.1684218
URI https://valep.vc.univie.ac.at/virtualarchive/public/Morris_Institute_for_the_Unity_of_Science_to_G_J_Laing_University_of_Chicago_Press_1937-08-25_L_Original/dv:952054