Heath, John,  1922- <br/><br/>
Biological Records Centre / 
John Heath and Franklyn Perring. 
 - Cambridge (68 Hill's Rd, Cambridge CB2 1LA) :  Institute of Terrestrial Ecology,  1978. 
 - 19p. 
<br/><br/><label>ISBN: </label>0904282244 (sd) 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Natural history--Great Britain.<br/>Biogeography.