Não informado. (2020). Reports of the Secretary and Treasurer. John Simon Guggenheim Memorial Foundation.
Chicagoスタイル(17版)引用形式Não informado. Reports of the Secretary and Treasurer. New York: John Simon Guggenheim Memorial Foundation, 2020.
MLA(8版)引用形式Não informado. Reports of the Secretary and Treasurer. John Simon Guggenheim Memorial Foundation, 2020.
警告: この引用は必ずしも正確ではありません.