MLA

Sturmey, Peter Sturmey, and Don E Williams. Pica In Individuals with Developmental Disabilities. Springer International Publishing, 2016.

APA

Sturmey, S., Sturmey, P., & Williams, D. E. (2016). Pica in Individuals with Developmental Disabilities. Springer International Publishing.

Chicago

Sturmey, Peter Sturmey, and Don E Williams. Pica In Individuals with Developmental Disabilities. : Springer International Publishing, 2016.