Dyfyniad APA

Richardson, G. A., Goldschmidt, L., & Willford, J. (2007). The Effects of Prenatal Cocaine Use on Infant Development.

Dyfyniad Arddull Chicago

Richardson, Gale A., Lidush Goldschmidt, and Jennifer Willford. The Effects of Prenatal Cocaine Use On Infant Development. 2007.

Dyfyniad MLA

Richardson, Gale A., Lidush Goldschmidt, and Jennifer Willford. The Effects of Prenatal Cocaine Use On Infant Development. 2007.

Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.