Bysen:MSW3 Cetacea
Mead, James G. and Robert L. Brownell, Jr (16 Blōtmōnþe, 2005). in Wilson, D. E., and Reeder, D. M. (eds): Mammal Species of the World (Syċedēor þǣre Ƿorulde), Þridde ādiht, Johns Hopkins University Press, 723–743. ISBN 0-801-88221-4.