Timonera, B. (2001). GMA wants mothballed national steel to reopen. Manila Times.
Chicago-viite (17. p.)Timonera, Bobby. "GMA Wants Mothballed National Steel to Reopen." Manila Times 2001.
MLA-viite (9. p.)Timonera, Bobby. "GMA Wants Mothballed National Steel to Reopen." Manila Times, 2001.
Varoitus: Nämä viitteet eivät aina ole täysin luotettavia.