Citazione APA

Ryan, J. A. (1921). The Labor Problem, What It Is- How to Solve It. A Catechism on the Social Question. New York.

Stile di citazione Chicago

Ryan, John A. The Labor Problem, What It Is- How to Solve It. A Catechism on the Social Question. New York, 1921.

Citazione MLA

Ryan, John A. The Labor Problem, What It Is- How to Solve It. A Catechism on the Social Question. New York, 1921.

Attenzione: Queste citazioni potrebbero non essere precise al 100%.