Não informado. (1979). Working paper series. International Potato Center, Social Science Department.
Citace podle Chicago (17th ed.)Não informado. Working Paper Series. Lima: International Potato Center, Social Science Department, 1979.
Citace podle MLA (8th ed.)Não informado. Working Paper Series. International Potato Center, Social Science Department, 1979.
Upozornění: Tyto citace jsou generovány automaticky. Nemusí být zcela správně podle citačních pravidel..