Sun, R. C. "Before the enemy is within our walls" . a social, cultural, and political history of Catholic workers in Cologne ; 1885-1912.
Chicago Style (17th ed.) CitationSun, Raymond Chien. "Before the Enemy Is Within Our Walls" . a Social, Cultural, and Political History of Catholic Workers in Cologne ; 1885-1912.
MLA (8th ed.) CitationSun, Raymond Chien. "Before the Enemy Is Within Our Walls" . a Social, Cultural, and Political History of Catholic Workers in Cologne ; 1885-1912.
Warning: These citations may not always be 100% accurate.