APA (7th ed.) Citation

Letwin, G. (1988). Inside OS 2. Microsoft Pr.

Chicago Style (17th ed.) Citation

Letwin, Gordon. Inside OS 2. Redmond, Wash: Microsoft Pr, 1988.

MLA (9th ed.) Citation

Letwin, Gordon. Inside OS 2. Microsoft Pr, 1988.

Warning: These citations may not always be 100% accurate.