TY  - BOOK
AU  - Strain,Boyd R.
AU  - Billings,W.D.
TI  - Vegetation and environment
SN  - 9061931878 :
U1  -  581.082 
PY  - 1974///
CY  - The Hague
PB  - W. Junk
KW  - Plant ecology
KW  - Plant communities
N1  - Includes bibliographical references and index
ER  -