Clarke, Robert, Sperm Whales of the southeast Pacific : Part I: Introducción. Part II: size range, external characters and teeth / Robert Clarke, Anelio Aguayo L., Obla Paliza. Subjects--Topical Terms: BIOLOGIA.CACHALOTES.DISTRIBUCION GEOGRAFICA.MAMIFEROS MARINOS. Subjects--Geographic Terms: OCEANO PACIFICO SUR.