Search Results       Your search for [subject]Manat River System -- Pangasinan returned 1 record.           The Physical, chemical and biological factors in the Manat River System and their implications to fish production. by Parayno, Pili A.; 1986. Subject: Fishery management -- Philippines; Fish habitat improvement; Manat River System -- Pangasinan.          Add to Book Cart Relevance: 28.57%