APA (7th ed.) Citation

Adamec, C. A., & Pierce, W. L. (1991). The encyclopedia of adoption. Facts on File.

Chicago Style (17th ed.) Citation

Adamec, Christine A., and William L. Pierce. The Encyclopedia of Adoption. New York: Facts on File, 1991.

MLA (9th ed.) Citation

Adamec, Christine A., and William L. Pierce. The Encyclopedia of Adoption. Facts on File, 1991.