APA (7th ed.) Zitazioa

Singh, J. (1991). Introduction to methods of social research. Sterling.

Chicago Style (17th ed.) Zitazioa

Singh, Jaspal. Introduction to Methods of Social Research. New Delhi: Sterling, 1991.

MLA (9th ed.) Zitazioa

Singh, Jaspal. Introduction to Methods of Social Research. Sterling, 1991.