Whittelsey, S. S., & Hadley, A. T. (1900). Massachusetts labor legislation: An historical and critical study. American Academy of Political and Social Science.
Chicago-referens (17:e uppl.)Whittelsey, Sarah Scovill, och Arthur Twining Hadley. Massachusetts Labor Legislation: An Historical and Critical Study. [Philadelphia: American Academy of Political and Social Science, 1900.
MLA-referens (8:e uppl.)Whittelsey, Sarah Scovill, och Arthur Twining Hadley. Massachusetts Labor Legislation: An Historical and Critical Study. American Academy of Political and Social Science, 1900.
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