Ryan, J. A. (1921). The Labor Problem, What It Is- How to Solve It. A Catechism on the Social Question. New York.
Chicago-Zitierstil (17. Ausg.)Ryan, John A. The Labor Problem, What It Is- How to Solve It. A Catechism on the Social Question. New York, 1921.
MLA-Zitierstil (8. Ausg.)Ryan, John A. The Labor Problem, What It Is- How to Solve It. A Catechism on the Social Question. New York, 1921.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.