Whittington, H. B. <br/><br/>
A Monograph of the British trilobites of the family harpidae 

 - ii, 55 pages:  illustration ;  28cm 
<br/><br/> Acc. No. 05300 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Mammals<br/>Paleontology