Sheldon, G. (1989). Illustrated Ventura 2.0. Plano, Tex: Wordware Pub.
Trích dẫn kiểu ChicagoSheldon, George. Illustrated Ventura 2.0. Plano, Tex: Wordware Pub, 1989.
MLA citiranjeSheldon, George. Illustrated Ventura 2.0. Plano, Tex: Wordware Pub, 1989.
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