APA
(1996). Operating System 2. Salcedo St. Legaspi Village Makati Manila: System technology Institute, Inc.
Chicago
1996. Operating System 2. Salcedo St. Legaspi Village Makati Manila: System technology Institute, Inc.
Harvard
(1996). Operating System 2. Salcedo St. Legaspi Village Makati Manila: System technology Institute, Inc.
MLA
Operating System 2. Salcedo St. Legaspi Village Makati Manila: System technology Institute, Inc. 1996.