International Potato Center. (1994). Annual report 1994. International Potato Center.
Cita Chicago (17th ed.)International Potato Center. Annual Report 1994. Lima: International Potato Center, 1994.
Cita MLA (9th ed.)International Potato Center. Annual Report 1994. International Potato Center, 1994.
Atenció: Aquestes cites poden no estar 100% correctes.