Clark, C. (1967). The economics of subsistence agriculture. New York: St. Martin's P.
Chicago Style CitationClark, Colin. The Economics of Subsistence Agriculture. New York: St. Martin's P, 1967.
Cita MLAClark, Colin. The Economics of Subsistence Agriculture. New York: St. Martin's P, 1967.
Atenció: Aquestes cites poden no estar 100% correctes.