@article{ERMS:SourceID:2938, author = {Carwardine, M. and Hoyt, E. and Fordyce, R. E. and Gill, P.}, journal = {Time-Life Books. Nature Company Guides, USA}, title = {Whales, dolphins and porpoises}, url = {http://marbef.org/data/aphia.php?p=sourcedetails&id=2938}, volume = {288}, year = {1998} }