TY  - ADVS
TI  - Ammonia nitrogen and kjeldahl nitrogen in environmental waters
PY  - 1976///
CY  - America, Fairfield
PB  - American Institute of Biological Sciences [production company], Communication Skills Corporation [distributor]
KW  - Ammonia
N1  - part 1; How to determine ammonia in natural waters and wastewaters -; part 2; How to determine total kjeldahl nitrogen in natural waters and wastewaters
ER  -