@misc{Letourneau_Charles_Jean_Marie_(1831–1902)_Rozwój_1891, author={Letourneau, Charles Jean Marie (1831–1902)}, editor={J. F. Tł.}, copyright={Public Domain}, address={Warszawa}, howpublished={online}, year={1891}, publisher={[s. n.]}, publisher={(druk K. Kowalewskiego)}, language={pol}, title={Rozwój moralności}, type={Text}, keywords={ethics}, }