Johns, E., & Pfefferkorn, B. (1954). The Johns Hopkins School of Nursing, 1889-1949. Johns Hopkins Press.
Chicago Style (17. basım) AtıfJohns, Ethel, ve Blanche Pfefferkorn. The Johns Hopkins School of Nursing, 1889-1949. Baltimore: Johns Hopkins Press, 1954.
MLA (8th ed.) AtıfJohns, Ethel, ve Blanche Pfefferkorn. The Johns Hopkins School of Nursing, 1889-1949. Johns Hopkins Press, 1954.
Uyarı: Bu alıntı herzaman %100 doğru olmayabilir..