Colina, A. V. Davao Oriental takes steps to tap seawater as source of fresh water. IN Mindanao News. Manila Bulletin.
Chicagoスタイル(17版)引用形式Colina, Antonio V. "Davao Oriental Takes Steps to Tap Seawater as Source of Fresh Water. IN Mindanao News." Manila Bulletin .
MLA(9版)引用形式Colina, Antonio V. "Davao Oriental Takes Steps to Tap Seawater as Source of Fresh Water. IN Mindanao News." Manila Bulletin, .
警告: この引用は必ずしも正確ではありません.