Gierens, M. (1928). Zeitfragen: Von Michael Gierens SJ. Bercker.
Chicago Style (17th ed.) CitationGierens, Michael. Zeitfragen: Von Michael Gierens SJ. Kevelaer: Bercker, 1928.
MLA (8th ed.) CitationGierens, Michael. Zeitfragen: Von Michael Gierens SJ. Bercker, 1928.
Warning: These citations may not always be 100% accurate.