Gayn, M. (1947). American agent. New York: Henry Holt And Company.
Trích dẫn kiểu ChicagoGayn, Mark. American Agent. New York: Henry Holt And Company, 1947.
MLA引文Gayn, Mark. American Agent. New York: Henry Holt And Company, 1947.
警告:这些引文格式不一定是100%准确.