PEARSON, R.G. <br/><br/>
The phenology of some surface-active arthropods of Moorland country in north Wales / 
By R.G. Pearson and E. White. 
 -- [S.l.] :   [s.n.],   1964 
 - pp. 245-258 
<br/><br/> Separata de : Journal of animal ecology 33. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Arácnidos<br/>Arañas
<br/><br/><label>Universal Decimal Class. No.: </label>595.4