De Guzman, R. (1997). Astronauts Cernan arrives. Manila Bulletin.
Chicagoスタイル(17版)引用形式De Guzman, Ronniel. "Astronauts Cernan Arrives." Manila Bulletin 1997.
MLA(9版)引用形式De Guzman, Ronniel. "Astronauts Cernan Arrives." Manila Bulletin, 1997.
警告: この引用は必ずしも正確ではありません.