APA
Kliegman R. M., St Geme J. W. I., Blum N. J., Tasker R. C., Shah S. S. & Wilson K. M.Nelson Textbook of pediatrics. Philadelphia, USA : Elsevier, 2020: .
Chicago
Kliegman Robert M, St Geme Joseph W III, Blum Nathan J, Tasker Robert C, Shah Samir S and Wilson Karen M.Nelson Textbook of pediatrics. Philadelphia, USA : Elsevier, 2020: .
Harvard
Kliegman R. M., St Geme J. W. I., Blum N. J., Tasker R. C., Shah S. S. and Wilson K. M.Nelson Textbook of pediatrics. Philadelphia, USA : Elsevier, 2020: .
MLA
Kliegman Robert M, St Geme Joseph W III, Blum Nathan J, Tasker Robert C, Shah Samir S and Wilson Karen M.Philadelphia, USA : Elsevier, 2020: . .