https://openlibrary.org/books/OL9358186M.opds Psychology of Interpersonal Relations 2022-10-18T22:51:58Z F. Heider https://openlibrary.org/authors/OL2912449A/F._Heider John Wiley & Sons Inc December 1967 322 eng https://openlibrary.org/books/OL9358186M https://archive.org/details/psychologyofinte0000unse urn:ISBN:0471368334 urn:ISBN:9780471368335 58010801