Watson, Eric Vernon. <br/><br/>
British mosses and liverwoths :   an introductory work descriptions and figures of over 2000 species, and keys for identification of all except the very rare species /  
written and illustrated  by E. Vernon Watson. 
 - Cambridge :   Cambridge University Press,   1955. 
 - 419 p. :    ill. ;    23 cm. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Mosses ----Great Britain.----<br/>Liverworts.----Great Britain.----
<br/><br/><label>Dewey Class. No.: </label>588.2