Bogdan, R., & Biklen, S. K. (1992). Qualitative research for education: An introduction to theory and methods (2nd ed.). Allyn and Bacon.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)Bogdan, Robert, و Sari Knopp Biklen. Qualitative Research for Education: An Introduction to Theory and Methods. 2nd ed. Boston: Allyn and Bacon, 1992.
توثيق جمعية اللغة المعاصرة MLA (الإصدار التاسع)Bogdan, Robert, و Sari Knopp Biklen. Qualitative Research for Education: An Introduction to Theory and Methods. 2nd ed. Allyn and Bacon, 1992.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.