TY  - BOOK
AU  - Crawford R M M Ed.
TI  - Plant life in aquatic and amphibious habitats
T2  - Special publication of the  british ecological society; 5
U1  - I:555, M7 
PY  - 1987///
CY  - Oxford
PB  - Blackwell         
KW  -  Plant environment
KW  - Botany
ER  -