Burrell, Harry. The Platypus. Adelaide: Rigby, 1974.
Grant, Tom. The Platypus. International Specialized Book Services, 1984.
Grant, Tom. The Platypus: a unique mammal. Sydney: University of New South Wales Press, 1995.
Griffiths, Mervyn. The Biology of the Monotremes. Academic Press, 1978.
Moyal, Ann. Platypus: The Extraordinary Story of How a Curious Creature Baffled the World. Smithsonian Book, 2001.
Pictures Contributed By:
Dr. Paddy Ryan
http://www.ryanphotographic.com/platypus.htm
And http://www.avru.org/images/map_platypus.gif
And Microsoft Word 2003 Clipart