APA

Microsoft Corp, . (1987). Microsoft GW-Basic interpreter. Redmond, WA: Microsoft Corporation.

Chicago

Microsoft Corp, . 1987. Microsoft GW-Basic interpreter. Redmond, WA: Microsoft Corporation.

Harvard

Microsoft Corp, . (1987). Microsoft GW-Basic interpreter. Redmond, WA: Microsoft Corporation.

MLA

Microsoft Corp, . Microsoft GW-Basic interpreter. Redmond, WA: Microsoft Corporation. 1987.