Gloria Cunanan Maphouse. (1996). Index map of Sulu Province. Cunanan Maphouse.
芝加哥风格引文Gloria Cunanan Maphouse. Index Map of Sulu Province. Makati City: Cunanan Maphouse, 1996.
MLA引文Gloria Cunanan Maphouse. Index Map of Sulu Province. Cunanan Maphouse, 1996.
警告：这些引文格式不一定是100％准确.