TY  - RPRT
TI  - Toxicity of six heterocyclic nitrogen compounds to Daphnia pulex
AU  - Cynthia M. Perry
AU  - Stephen B. Smith
PY  - 1988
DO  - 10.1007/bf02021007
UR  - https://pubs.usgs.gov/publication/1000540
ID  - 1000540
ER  -