APA (7th ed.) Citation

Treffert, D. A. (1990). Extraordinary people. Black Swan.

Chicago Style (17th ed.) Citation

Treffert, Darold A. Extraordinary People. London: Black Swan, 1990.

MLA (9th ed.) Citation

Treffert, Darold A. Extraordinary People. Black Swan, 1990.

Warning: These citations may not always be 100% accurate.