Johnson, J. B. (1987). Political science research methods. Prentice-Hall of India.
استشهاد بنمط شيكاغوJohnson, Janet Buttolph. Political Science Research Methods. New Delhi: Prentice-Hall of India, 1987.
MLA استشهادJohnson, Janet Buttolph. Political Science Research Methods. Prentice-Hall of India, 1987.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.