Whittelsey, S. S., & Hadley, A. T. (1900). Massachusetts labor legislation: An historical and critical study. American Academy of Political and Social Science.
Lua i Stíl Chicago (17ú heag.)Whittelsey, Sarah Scovill, agus Arthur Twining Hadley. Massachusetts Labor Legislation: An Historical and Critical Study. [Philadelphia: American Academy of Political and Social Science, 1900.
Lua MLA (8ú heag.)Whittelsey, Sarah Scovill, agus Arthur Twining Hadley. Massachusetts Labor Legislation: An Historical and Critical Study. American Academy of Political and Social Science, 1900.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.