Não informado. (2000). Bulletin of the Delaware University, Agricultural Experiment Station. Delaware Agricultural Experiment Station.
Čikaški stil citiranja (17. izdanje)Não informado. Bulletin of the Delaware University, Agricultural Experiment Station. Newark, Del: Delaware Agricultural Experiment Station, 2000.
MLA način citiranja (8. izdanje)Não informado. Bulletin of the Delaware University, Agricultural Experiment Station. Delaware Agricultural Experiment Station, 2000.
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