APA引文

(1990). Nelson essentials of pediatrics. Philadelphia: S. W. Saunder Co.

Trích dẫn kiểu Chicago

Nelson Essentials of Pediatrics. Philadelphia: S. W. Saunder Co, 1990.

MLA引文

Nelson Essentials of Pediatrics. Philadelphia: S. W. Saunder Co, 1990.

警告：這些引文格式不一定是100％准確.