Hellbroner, R. L. (1963). The great ascent. New York: Harper & Row.
Trích dẫn kiểu ChicagoHellbroner, Robert L. The Great Ascent. New York: Harper & Row, 1963.
MLA引文Hellbroner, Robert L. The Great Ascent. New York: Harper & Row, 1963.
警告：這些引文格式不一定是100％准確.