King, K., & Ball, D. (1989). A holistic approach to accident and injury prevention in children's playgrounds. LSS.
Citación estilo ChicagoKing, Karen, and David Ball. A Holistic Approach to Accident and Injury Prevention in Children's Playgrounds. London: LSS, 1989.
Cita MLAKing, Karen, and David Ball. A Holistic Approach to Accident and Injury Prevention in Children's Playgrounds. LSS, 1989.
Warning: These citations may not always be 100% accurate.