Não informado. (2015). News Letter. National Coffee Association.
Chicagoスタイル(17版)引用形式Não informado. News Letter. New York: National Coffee Association, 2015.
MLA(8版)引用形式Não informado. News Letter. National Coffee Association, 2015.
警告: この引用は必ずしも正確ではありません.