SPENCER, Herbert. ETIKOS DUOMENYS (ištrauka). Problemos, [S. l.], v. 85, p. 183–185, 2014. DOI: 10.15388/Problemos.2014.0.2910. Disponível em: https://www.journals.vu.lt/problemos/article/view/2910. Acesso em: 14 dec. 2025.