Witting, A. (2004). Schaum's outline of theory and problems of introduction to psychology (2nd ed.). Tata McGraw Hill.

Witting, A. Schaum's Outline of Theory and Problems of Introduction to Psychology. 2nd ed. New Delhi: Tata McGraw Hill, 2004.

Witting, A. Schaum's Outline of Theory and Problems of Introduction to Psychology. 2nd ed. Tata McGraw Hill, 2004.