Hammer O & Harper D A T <br/><br/>
Palaeontological data analysis .-978-1-4051-1544-5 

 -  Blackwell Pub, Australia, Australia 
<br/><br/><label>ISBN: </label>978-1-4051-1544-5 
<br/><br/><label>Dewey Class. No.: </label>H6:(B28)/P06/B26872