APA

Verny T., Kelly J., . (1981). The secret life of the unborn child. New York: Dell Publishing Company.

Chicago

Verny T, Kelly J, . 1981. The secret life of the unborn child. New York: Dell Publishing Company.

Harvard

Verny T., Kelly J., . (1981). The secret life of the unborn child. New York: Dell Publishing Company.

MLA

Verny T, Kelly J, . The secret life of the unborn child. New York: Dell Publishing Company. 1981.