APA

Danforth D. N., . (1977). Obstetrics and gynecology. New York: Medical Department Harper and Row.

Chicago

Danforth David N, . 1977. Obstetrics and gynecology. New York: Medical Department Harper and Row.

Harvard

Danforth D. N., . (1977). Obstetrics and gynecology. New York: Medical Department Harper and Row.

MLA

Danforth David N, . Obstetrics and gynecology. New York: Medical Department Harper and Row. 1977.