Não informado. (2021). Annual Report. Czechoslovak Academy of Sciences.
Chicagoスタイル(17版)引用形式Não informado. Annual Report. Praha: Czechoslovak Academy of Sciences, 2021.
MLA(8版)引用形式Não informado. Annual Report. Czechoslovak Academy of Sciences, 2021.
警告: この引用は必ずしも正確ではありません.