Gaya APA

Nicholas, C., A, D, G. (1991). Handbook of Gifted Education . United States of America: Prentice Hall Simon & Schuster (Asia) Pte Ltd..

Gaya MLA

Nicholas, Colangelo., A, Davis, Gary. "Handbook of Gifted Education". United States of America: Prentice Hall Simon & Schuster (Asia) Pte Ltd., 1991. Text.