APA (7th ed.) Citation
KEEN, D., & ET AL. (2002). REPLACING PRELINGUISTIC BEHAVIORS WITH FUNCTIONAL COMMUNICATION.
Chicago Style (17th ed.) Citation
KEEN, D., and ET AL. REPLACING PRELINGUISTIC BEHAVIORS WITH FUNCTIONAL COMMUNICATION. 2002.
MLA (9th ed.) Citation
KEEN, D., and ET AL. REPLACING PRELINGUISTIC BEHAVIORS WITH FUNCTIONAL COMMUNICATION. 2002.
Warning: These citations may not always be 100% accurate.