Não informado. (2000). Bulletin of the Delaware University, Agricultural Experiment Station. Delaware Agricultural Experiment Station.
Citação do estilo Chicago (17ª ed.)Não informado. Bulletin of the Delaware University, Agricultural Experiment Station. Newark, Del: Delaware Agricultural Experiment Station, 2000.
Citação MLA (8ª ed.)Não informado. Bulletin of the Delaware University, Agricultural Experiment Station. Delaware Agricultural Experiment Station, 2000.
Atenció: Aquestes cites poden no estar 100% correctes.