Παραπομπή APA

(2006). Washington, D.C.: Digital picture postcard : 250 premium photographs of Washington D.C.'famous site and landmarks on a computer CD disk. [k.đ.]: [k.n.x.b.].

Παραπομπή Chicago Style

Washington, D.C.: Digital Picture Postcard : 250 Premium Photographs of Washington D.C.'famous Site and Landmarks On a Computer CD Disk. [k.đ.]: [k.n.x.b.], 2006.

Παραπομπή MLA

Washington, D.C.: Digital Picture Postcard : 250 Premium Photographs of Washington D.C.'famous Site and Landmarks On a Computer CD Disk. [k.đ.]: [k.n.x.b.], 2006.

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