Gardner, J. W. (1970). The recovery of confidence. New York: Norton.
Trích dẫn kiểu ChicagoGardner, John W. The Recovery of Confidence. New York: Norton, 1970.
MLA引文Gardner, John W. The Recovery of Confidence. New York: Norton, 1970.
警告:这些引文格式不一定是100%准确.