Ryan, J. A. (1921). The Labor Problem, What It Is- How to Solve It. A Catechism on the Social Question. New York.
Chicago Style (17. basım) AtıfRyan, John A. The Labor Problem, What It Is- How to Solve It. A Catechism on the Social Question. New York, 1921.
MLA (8th ed.) AtıfRyan, John A. The Labor Problem, What It Is- How to Solve It. A Catechism on the Social Question. New York, 1921.
Uyarı: Bu alıntı herzaman %100 doğru olmayabilir..