Não informado. (1950). Library Science Abstracts. Library Association.
Chicagoスタイル(17版)引用形式Não informado. Library Science Abstracts. London: Library Association, 1950.
MLA(8版)引用形式Não informado. Library Science Abstracts. Library Association, 1950.
警告: この引用は必ずしも正確ではありません.