APA aipamena

Johns, E., & Pfefferkorn, B. (1954). The Johns Hopkins School of Nursing, 1889-1949. Johns Hopkins Press.

Chicago Style aipamena

Johns, Ethel, and Blanche Pfefferkorn. The Johns Hopkins School of Nursing, 1889-1949. Baltimore: Johns Hopkins Press, 1954.

MLA aipamena

Johns, Ethel, and Blanche Pfefferkorn. The Johns Hopkins School of Nursing, 1889-1949. Johns Hopkins Press, 1954.