Ryan, J. A. (1921). The Labor Problem, What It Is- How to Solve It. A Catechism on the Social Question. New York.
Chicago-стиль цитированияRyan, John A. The Labor Problem, What It Is- How to Solve It. A Catechism on the Social Question. New York, 1921.
MLA-цитированиеRyan, John A. The Labor Problem, What It Is- How to Solve It. A Catechism on the Social Question. New York, 1921.
Предупреждение: эти цитированмия не могут быть всегда правильны на 100%.