Não informado. (2007). Pamphlet. Vermont Agricultural Experiment Station.
Chicagoスタイル(17版)引用形式Não informado. Pamphlet. Burlington, Vt: Vermont Agricultural Experiment Station, 2007.
MLA(8版)引用形式Não informado. Pamphlet. Vermont Agricultural Experiment Station, 2007.
警告: この引用は必ずしも正確ではありません.