Fighting fishde David M. SchwartzMateriasLife cyclesLife sciencesFishesScienceJuvenile literatureBettaStudy and teaching (Elementary)Ediciones (1)Fighting fish (1999)Creative Teaching Press · inglés · ISBN 9781574715606Más obras de David M. SchwartzAmong the flowersAAmong the FlowersAmong the FlowersAnimal Ears (Look Once, Look Again)