TY  - BOOK
AU  - COOK, Christopher D. K
TI  - Water plants of the world : a manual for the identification of the genera of freshwater macrophytes
U1  - 574.92 W22 
PY  - 1974///
PB  - The Hague
KW  - AQUATIC PLANTS -- HANDBOOKS, MANUALS, ETC
KW  - FRESH - WATER FLORA -- HANDBOOKS, MANUALS, E
ER  -