APA (7 ম সংস্করণ) উদ্ধৃতি

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

শিকাগো স্টাইল (17 তম সংস্করণ) উদ্ধৃতি

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

M.L.A (8 ম সংস্করণ) উদ্ধৃতি

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