APA
European Paediatric Orthopaedic Society, Pediatric Orthopaedic Society of North America & Pediatric Section A. P. O. A. (1981). Journal of pediatric orthopaedics. Philadelphia, PA: Lippincott Williams & Wilkins.
Chicago
European Paediatric Orthopaedic Society, Pediatric Orthopaedic Society of North America and Pediatric Section Asia Pacific Orthopaedic Association. 1981. Journal of pediatric orthopaedics. Philadelphia, PA: Lippincott Williams & Wilkins.
Harvard
European Paediatric Orthopaedic Society, Pediatric Orthopaedic Society of North America and Pediatric Section A. P. O. A. (1981). Journal of pediatric orthopaedics. Philadelphia, PA: Lippincott Williams & Wilkins.
MLA
European Paediatric Orthopaedic Society, Pediatric Orthopaedic Society of North America and Pediatric Section Asia Pacific Orthopaedic Association. Journal of pediatric orthopaedics. Philadelphia, PA: Lippincott Williams & Wilkins. 1981.