APA
Ralph A. Reis, . (1960). Obstretics & Gynecology. New York: Paul B. Hoeber.
Chicago
Ralph A. Reis, . 1960. Obstretics & Gynecology. New York: Paul B. Hoeber.
Harvard
Ralph A. Reis, . (1960). Obstretics & Gynecology. New York: Paul B. Hoeber.
MLA
Ralph A. Reis, . Obstretics & Gynecology. New York: Paul B. Hoeber. 1960.