Pratchett, Terry <br/><br/>
The science of Discworld III: Darwin's watch 
Terry Pratchett; Ian Stewart; Jack S Cohen 
 - London  Ebury  2005 
 - 368 p. ; 17 cm 
<br/><br/> Includes index 
<br/><br/><label>ISBN: </label>9780091898243 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Cosmology<br/>Discworld (Imaginary place)<br/>Evolution (Biology)
<br/><br/><label>Dewey Class. No.: </label>523.1 PRA