Philippines National Library & Bibliography Division. Guide to the 1971 constitutional convention papers. TNL.
芝加哥风格引文Philippines National Library 与 Bibliography Division. Guide to the 1971 Constitutional Convention Papers. Manila: TNL.
MLA引文Philippines National Library 与 Bibliography Division. Guide to the 1971 Constitutional Convention Papers. TNL.
警告：这些引文格式不一定是100％准确.