Kloetzli, W. (1961). The church and the urban challenge. Muhlenberg Press.
Cita Chicago (17th ed.)Kloetzli, Walter. The Church and the Urban Challenge. Muhlenberg Press, 1961.
Cita MLA (9th ed.)Kloetzli, Walter. The Church and the Urban Challenge. Muhlenberg Press, 1961.
Atenció: Aquestes cites poden no estar 100% correctes.