Bem Sex-Role Inventory (BSRI)
Here's your citation in American Psychological Association (APA) format:
Bem Sex-Role Inventory (BSRI). (n.d.). In Alleydog.com's online glossary. Retrieved from: https://www.alleydog.com/glossary/definition-cit.php?term=Bem+Sex-Role+Inventory+%28BSRI%29