Gaya APA

Pongoh, I., Tilaar, . (1994). Concise user's guide:microsoft MS-Dos 6.22 for the MS-Dos operating system . Taiwan: Microsoft Corporation.

Gaya MLA

Pongoh, Ivonne., Tilaar, . "Concise user's guide:microsoft MS-Dos 6.22 for the MS-Dos operating system". Taiwan: Microsoft Corporation, 1994. Text.