Não informado. (2001). Annual Report. North Carolina State College of Agriculture and Engineering, Agricultural Extension Service.
Čikaški stil citiranja (17. izdanje)Não informado. Annual Report. Raleigh, NC: North Carolina State College of Agriculture and Engineering, Agricultural Extension Service, 2001.
MLA način citiranja (8. izdanje)Não informado. Annual Report. North Carolina State College of Agriculture and Engineering, Agricultural Extension Service, 2001.
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