Cita APA (7a ed.)

Gilbert, M. S. (1963). Biography of the unborn ([New rev. ed.].). Hafner Pub. Co..

Cita Chicago Style (17a ed.)

Gilbert, M. S. Biography of the Unborn. [New rev. ed.]. New York: Hafner Pub. Co., 1963.

Cita MLA (8a ed.)

Gilbert, M. S. Biography of the Unborn. [New rev. ed.]. Hafner Pub. Co., 1963.