Sulu-Sulawesi seas - Freund, Jurgen (Manila The Bookmark, 2001)
Keywords: Marine animals -- Sulu sea -- Pictorial works; Marine animals -- Sulawesi -- pictorial works; Marine biological diversity -- Sulu sea -- Pictorial works; Marine biological diversity -- Sulawesi -- Pictorial works; Coastal ecology -- Sulu sea -- Pictorial works; Coastal ecology -- Sulawesi -- pictorial works; Marine biological diversity