Aggarwal, J.C. The theory and principles of education : philosophical and sociological bases of education. - 9th rev ed. - New Delhi, Vikas publishing, 1995. - 430 p. 18 cm. LCCN: sa 63000789 Subjects--Topical Terms: Education--theory and practical LC Class. No.: LB775.G22 / S55 1962 Dewey Class. No.: 370.12 / AGG