Husslein, J. C. (1918). The world problem: Capital, labor and the church. P. J. Kenedy & sons.
Lua i Stíl Chicago (17ú heag.)Husslein, Joseph Casper. The World Problem: Capital, Labor and the Church. New York: P. J. Kenedy & sons, 1918.
Lua MLA (8ú heag.)Husslein, Joseph Casper. The World Problem: Capital, Labor and the Church. P. J. Kenedy & sons, 1918.
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