APA
Whitsitt R. E., . (19921991). Illustrated windows 3.1. New Delhi: BPB Publications.
Chicago
Whitsitt Robert E, . 19921991. Illustrated windows 3.1. New Delhi: BPB Publications.
Harvard
Whitsitt R. E., . (19921991). Illustrated windows 3.1. New Delhi: BPB Publications.
MLA
Whitsitt Robert E, . Illustrated windows 3.1. New Delhi: BPB Publications. 19921991.