Whittelsey, S. S., & Hadley, A. T. (1900). Massachusetts labor legislation: An historical and critical study. American Academy of Political and Social Science.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)Whittelsey, Sarah Scovill, و Arthur Twining Hadley. Massachusetts Labor Legislation: An Historical and Critical Study. [Philadelphia: American Academy of Political and Social Science, 1900.
توثيق جمعية اللغة المعاصرة MLA (الطبعة الثامنة)Whittelsey, Sarah Scovill, و Arthur Twining Hadley. Massachusetts Labor Legislation: An Historical and Critical Study. American Academy of Political and Social Science, 1900.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.