Ryan, J. A. (1950). Capital and Labor. New York.
Chicago Style aipamenaRyan, John A. Capital and Labor. New York, 1950.
MLA aipamenaRyan, John A. Capital and Labor. New York, 1950.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.
Ryan, J. A. (1950). Capital and Labor. New York.
Chicago Style aipamenaRyan, John A. Capital and Labor. New York, 1950.
MLA aipamenaRyan, John A. Capital and Labor. New York, 1950.