Echeminada, P. (1998). M'danao tribesmen don't need viagra. Philippine Star.
Chicagoスタイル(17版)引用形式Echeminada, Perseus. "M'danao Tribesmen Don't Need Viagra." Philippine Star 1998.
MLA(9版)引用形式Echeminada, Perseus. "M'danao Tribesmen Don't Need Viagra." Philippine Star, 1998.
警告: この引用は必ずしも正確ではありません.