APA (7th ed.) Citation

Philippines. National Computer Center & Information Technology Resources Research Unit. (1990). Directory of government-developed software. Information Technology Resources Research Unit, National Computer Center.

Chicago Style (17th ed.) Citation

Philippines. National Computer Center and Information Technology Resources Research Unit. Directory of Government-developed Software. Quezon City: Information Technology Resources Research Unit, National Computer Center, 1990.

MLA (9th ed.) Citation

Philippines. National Computer Center and Information Technology Resources Research Unit. Directory of Government-developed Software. Information Technology Resources Research Unit, National Computer Center, 1990.