एपीए उद्धरण

Vasantha Ramkumar. (1973). Self concept and achievement.

शिकागो स्टाइल उद्धरण

Vasantha Ramkumar. Self Concept and Achievement. Trivandrum, Radha Publications, 1973.

एमएलए उद्धरण

Vasantha Ramkumar. Self Concept and Achievement. 1973.