1. Microsoft Encarta 97 Encyclopedia by Microsoft Corporation U.S.A. 1997
2. "Antarctica" by "John Baines," pulished by "Wayland Publishers" England 1997
3. "Whales and Dolphins" by "Eva Plaganyi," published by "New Holland Publishers Ltd." England 1994
4. "Australians In Antarctica" by "Colin Heath," published by "Methuen Australia Pty. Ltd." Australia 1984
5. "H.S.I.E. book" by "Kinjal Majumder," compiled by "Kinjal Majumder" Australia 1999
6. Internet: http://www.terraquest.com/va/science.htm