(1997). The Frankfurt CD-ROM. The electronic guide to the Frankfurt book fair.
Chicagoスタイル(17版)引用形式The Frankfurt CD-ROM. The Electronic Guide to the Frankfurt Book Fair. 1997.
MLA(9版)引用形式The Frankfurt CD-ROM. The Electronic Guide to the Frankfurt Book Fair. 1997.
警告: この引用は必ずしも正確ではありません.