Askin, J. A. (1967). A Symposium on the child: Selected essays presented on the occassion of the seventy-fifth Anniversary of the Johns Hopkins Hospital and the Dedication of the childrens medical and surgical center, May 14-15, 1964. Johns Hopkins Press.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रAskin, John A. A Symposium on the Child: Selected Essays Presented on the Occassion of the Seventy-fifth Anniversary of the Johns Hopkins Hospital and the Dedication of the Childrens Medical and Surgical Center, May 14-15, 1964. Baltimore: Johns Hopkins Press, 1967.
एमएलए (9वां संस्करण) प्रशस्ति पत्रAskin, John A. A Symposium on the Child: Selected Essays Presented on the Occassion of the Seventy-fifth Anniversary of the Johns Hopkins Hospital and the Dedication of the Childrens Medical and Surgical Center, May 14-15, 1964. Johns Hopkins Press, 1967.