APA (7th ed.) Citation

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

Chicago Style (17th ed.) Citation

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

MLA (8th ed.) Citation

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