Cita APA (7th ed.)

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

Cita Chicago (17th ed.)

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

Cita MLA (9th ed.)

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