TY  - BOOK
AU  - Perry,A.Roy
TI  - Mosses and liverworts of woodland : : a guide to some of the common est species / 
SN  - 0720003628
U1  - P 581.782 P48 
PY  - 1992///
CY  - Cardiff : 
PB  - National Museum of Wales, 
KW  - Plant communities
N1  -  Includes index
ER  -