Collns, W. Scientist and farmer: Partners in research for the 21st century, program report 1999 - 2000. International Potato Center.
Čikaški stil citiranja (17. izdanje)Collns, Wanda. Scientist and Farmer: Partners in Research for the 21st Century, Program Report 1999 - 2000. International Potato Center.
MLA način citiranja (8. izdanje)Collns, Wanda. Scientist and Farmer: Partners in Research for the 21st Century, Program Report 1999 - 2000. International Potato Center.
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