Pervasive Developmental Disorders %28PDDs%29
Here's your citation in American Psychological Association (APA) format:
Pervasive Developmental Disorders %28PDDs%29. (n.d.). In Alleydog.com's online glossary. Retrieved from: https://www.alleydog.com/glossary/definition-cit.php?term=Pervasive+Developmental+Disorders+%2528PDDs%2529