Nell-Breuning, O., & Sacher, H. (1958). Zur soialen frage (2 edició.). Herder.
Chicago Style (17th ed.) CitationNell-Breuning, O., and Hermann Sacher. Zur Soialen Frage. 2 edició. Freiburg: Herder, 1958.
MLA (9th ed.) CitationNell-Breuning, O., and Hermann Sacher. Zur Soialen Frage. 2 edició. Herder, 1958.
Warning: These citations may not always be 100% accurate.