Cita APA (7a ed.)

Williamson, G. G., & Szczepanski, M. (1987). Children with spina bifida: Early intervention and preschool programming. Paul H. Brookes.

Cita Chicago Style (17a ed.)

Williamson, G. Gordon, y Margery Szczepanski. Children with Spina Bifida: Early Intervention and Preschool Programming. Baltimore [etc.]: Paul H. Brookes, 1987.

Cita MLA (9a ed.)

Williamson, G. Gordon, y Margery Szczepanski. Children with Spina Bifida: Early Intervention and Preschool Programming. Paul H. Brookes, 1987.