Cita APA

Theobald, R. (1961). The challenge of abundance. New York: C. N. Potter.

Chicago Style Citation

Theobald, Robert. The Challenge of Abundance. New York: C. N. Potter, 1961.

Cita MLA

Theobald, Robert. The Challenge of Abundance. New York: C. N. Potter, 1961.

Atenció: Aquestes cites poden no estar 100% correctes.