APA (7th ed.) Citation

Rosales, R. R. (1991). UP Diliman's telephone system. IN Know your university [column]. U.P. Newsletter.

Chicago Style (17th ed.) Citation

Rosales, Roy R. "UP Diliman's Telephone System. IN Know Your University [column]." U.P. Newsletter 1991.

MLA (9th ed.) Citation

Rosales, Roy R. "UP Diliman's Telephone System. IN Know Your University [column]." U.P. Newsletter, 1991.

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