Espina, R. L. (1997). Negros development shifts. IN The southern beat [column]. Philippine Star.
Chicagoスタイル(17版)引用形式Espina, Rolly L. "Negros Development Shifts. IN The Southern Beat [column]." Philippine Star 1997.
MLA(9版)引用形式Espina, Rolly L. "Negros Development Shifts. IN The Southern Beat [column]." Philippine Star, 1997.
警告: この引用は必ずしも正確ではありません.