Litwack, G. (2003). Vitamins and hormones. New York: Academic Press.
Trích dẫn kiểu ChicagoLitwack, Gerald. Vitamins and Hormones. New York: Academic Press, 2003.
MLA引文Litwack, Gerald. Vitamins and Hormones. New York: Academic Press, 2003.
警告:这些引文格式不一定是100%准确.