Não informado. (2020). Research Reports. Smithsonian Institution, Office of Public Affairs.
Chicagoスタイル(17版)引用形式Não informado. Research Reports. Washington: Smithsonian Institution, Office of Public Affairs, 2020.
MLA(8版)引用形式Não informado. Research Reports. Smithsonian Institution, Office of Public Affairs, 2020.
警告: この引用は必ずしも正確ではありません.