Whittelsey, S. S., & Hadley, A. T. (1900). Massachusetts labor legislation: An historical and critical study. American Academy of Political and Social Science.
Dyfyniad Arddull ChicagoWhittelsey, Sarah Scovill, and Arthur Twining Hadley. Massachusetts Labor Legislation: An Historical and Critical Study. [Philadelphia: American Academy of Political and Social Science, 1900.
Dyfyniad MLAWhittelsey, Sarah Scovill, and Arthur Twining Hadley. Massachusetts Labor Legislation: An Historical and Critical Study. American Academy of Political and Social Science, 1900.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.