Não informado. (1977). Library Acquisitions: Practice and theory. Pergamon Press.
Chicagoスタイル(17版)引用形式Não informado. Library Acquisitions: Practice and Theory. New York: Pergamon Press, 1977.
MLA(8版)引用形式Não informado. Library Acquisitions: Practice and Theory. Pergamon Press, 1977.
警告: この引用は必ずしも正確ではありません.