Lectures on the practice of botanical and zoological classification:   Delivered in the rooms of the Linnean Society during the session 1949-50  

 - London:   The Linnean Society of London,   1951 
 - 64p. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Botany
<br/><br/><label>Universal Decimal Class. No.: </label>58/59   / J1