Παραπομπή APA

Kassera,Volker, & Kassera, W. (1991). Programming with TURBO PASCAL. Galgotia.

Παραπομπή Chicago Style

Kassera,Volker, και Winfried Kassera. Programming with TURBO PASCAL. New Delhi: Galgotia, 1991.

Παραπομπή MLA

Kassera,Volker, και Winfried Kassera. Programming with TURBO PASCAL. Galgotia, 1991.