TY  - BOOK
AU  - Allen, Herbert E, Ed.; Kramer, James R, Ed.
TI  - Nutrients in natural waters
U1  - 577.6  ALL-N 
PY  - 1972///
CY  - John Wiley & Sons, London
KW  - Aquatic ecology-- Fresh water ecology-- Pond ecology-- Limnology (biology)-- groundwater ecology
ER  -