Cita APA

Hellbroner, R. L. (1963). The great ascent. New York: Harper & Row.

Chicago Style Citation

Hellbroner, Robert L. The Great Ascent. New York: Harper & Row, 1963.

Cita MLA

Hellbroner, Robert L. The Great Ascent. New York: Harper & Row, 1963.

Atenció: Aquestes cites poden no estar 100% correctes.