@book{Wasyluk2009, author = {Pjotr Wasyluk}, title = {Ericha Fromma koncepcja postępu zintegrowanego [Erich Fromm's Concept of Integrated Progress], Olsztyn (Publishing House of the Center for Eastern European Studies of the University of Warmia and Mazury) Poland 2009, 165 pp.}, year = {2009}, }