Gaya APA

Telford, C, W., Sawrey, J, M. (1967). The Exceptional individual : psychological and educational aspects . Englewood Cliffs, NJ: Prentice Hall.

Gaya MLA

Telford, Charles, W.., Sawrey, James, M.. "The Exceptional individual : psychological and educational aspects". Englewood Cliffs, NJ: Prentice Hall, 1967. Text.