Persistent identifier https://phaidra.univie.ac.at/o:1684224
Handle https://hdl.handle.net/11353/10.1684224
URI https://valep.vc.univie.ac.at/virtualarchive/public/Morris_Regarding_revised_contract_for_Foundations_of_the_Unity_of_Science_1949-09-24_M_Original/dv:953124