APA

edit. II. Nelson W. E., .Nelson textbook of pediatrics. Philadelphia: W. B. Saunders.

Chicago

edit. II. Nelson Waldo E, .Nelson textbook of pediatrics. Philadelphia: W. B. Saunders.

Harvard

edit. II. Nelson W. E., .Nelson textbook of pediatrics. Philadelphia: W. B. Saunders.

MLA

edit. II. Nelson Waldo E, .Philadelphia: W. B. Saunders. .