TY  - BOOK
AU  - Bulkema,Arthur L.
AU  - Cairns,John
ED  - American society for testing and materials.
ED  - Virginia Polytechnic Institute and State University
TI  - Aquatic invertebrate bioassays: a symposium sponsored by ASTM Committee D-19 on Water American Society for Testing and Materials, Blacksburg, va. 27 - 29 Sept., 1977 
PY  - 1980///
CY  - Philadelphia
PB  - American Society for Testing and Materials
KW  - Water quality bioassay
KW  - Congresses
KW  - Aquatic invertebrates
ER  -