توثيق جمعية علم النفس الأمريكية APA (الطبعة السابعة)

Zymelman, M. (1970). The relationship between productivity and the formal education of the labor force in manufacturing industries. Center for studies in Education and Development, Harvard University.

توثيق أسلوب شيكاغو (الطبعة السابعة عشر)

Zymelman, Manuel. The Relationship Between Productivity and the Formal Education of the Labor Force in Manufacturing Industries. Camb. Mass.: Center for studies in Education and Development, Harvard University, 1970.

توثيق جمعية اللغة المعاصرة MLA (الطبعة الثامنة)

Zymelman, Manuel. The Relationship Between Productivity and the Formal Education of the Labor Force in Manufacturing Industries. Center for studies in Education and Development, Harvard University, 1970.