Philippine aquatic wildlife rescue and response manual series sharks and rays - Aca Elson; Alava, Moonyen Nida R.; Aquino, Ma. Theresa; David, David; Enolva, Nonie; Gaerlan, Rosario Segundina P.; Guanco, May; Nepumoceno, Raymundo; Eisma-Osorio, Rose Lisa; Ponzo, Alessandro; Sabater, Edna R.; Santos, Mudjekeewis; et al. (Marine Wild Fauna Watch of the Philippines, Inc., 2014)