Simmons, B., & Watson, D. (2014). The PMLD ambiguity: Articulating the life-worlds of children with profound and multiple learning disabilities. Karnac.

Simmons, Ben, and Debbie Watson. The PMLD Ambiguity: Articulating the Life-worlds of Children with Profound and Multiple Learning Disabilities. London, [England]: Karnac, 2014.

Simmons, Ben, and Debbie Watson. The PMLD Ambiguity: Articulating the Life-worlds of Children with Profound and Multiple Learning Disabilities. Karnac, 2014.