Perring, F. <br/><br/>
The flora of a changing Britain 

 - Humpton:  E. W. Classey,  1970. 
 - 157p.:  ill.;  22cm. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Botany
<br/><br/><label>LC Class. No.: </label>QK306.P3