Environmental science a shared responsibility towards the earth - Santiago, Florenda I.; Dorado, Salvacion L.; Contreras, Lourdes E.; Aquino, Ma. Salvacion G.; Retondo, Elsinor P.; Lamorena, Melchora B. (Manila Rex Book Store, 1996)
Bibliography: p. 155-159.
Keywords: Environmental sciences; Human ecology -- Study and teaching; Environmental impact analysis -- Geographic subdivision Philippines; Environmental protection -- Geographic subdivision Philippines