Joint Committee on LIbrary Service to Labor Groups. Public library service to labor groups. Five case studies: Akron, Boston, Milwaukee, New York, Newark.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)Joint Committee on LIbrary Service to Labor Groups. Public Library Service to Labor Groups. Five Case Studies: Akron, Boston, Milwaukee, New York, Newark. [Chicago] American Library Association [1950].
توثيق جمعية اللغة المعاصرة MLA (الإصدار التاسع)Joint Committee on LIbrary Service to Labor Groups. Public Library Service to Labor Groups. Five Case Studies: Akron, Boston, Milwaukee, New York, Newark.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.