De Guzman, C. R. (1998). Tourism: To give RP economy wings. Manila Bulletin.
Chicagoスタイル(17版)引用形式De Guzman, Cornelio R. "Tourism: To Give RP Economy Wings." Manila Bulletin 1998.
MLA(9版)引用形式De Guzman, Cornelio R. "Tourism: To Give RP Economy Wings." Manila Bulletin, 1998.
警告: この引用は必ずしも正確ではありません.