Bruce L. Gardner and Gordon C. Rausser. (2002). Agriculture and its External Linkages. ELSEVIER.
Cita Chicago (17th ed.)Bruce L. Gardner and Gordon C. Rausser. Agriculture and Its External Linkages. ELSEVIER, 2002.
Cita MLA (8th ed.)Bruce L. Gardner and Gordon C. Rausser. Agriculture and Its External Linkages. ELSEVIER, 2002.
Atenció: Aquestes cites poden no estar 100% correctes.