Guenthner, J. (2002). The International Potato Industry. ELSEVIER.
Cita Chicago (17th ed.)Guenthner, Joseph. The International Potato Industry. ELSEVIER, 2002.
Cita MLA (8th ed.)Guenthner, Joseph. The International Potato Industry. ELSEVIER, 2002.
Atenció: Aquestes cites poden no estar 100% correctes.