TY  - GEN
AU  - United Nations Environment Programme
A4  - Chapman, D. V.
PY  - 1989
UR  - https://wedocs.unep.org/handle/20.500.11822/29667
LA  - English
KW  - biological monitoring
KW  - data collection
TI  - Concepts and Strategies for Biological Monitoring
M3  - Communication or other resource
ER  -