New approaches to monitoring aquatic ecosystems : a symposium /
sponsored by ASTM Committee E-47 on Biological Effects and Environmental Fact and by the Ecological Society of America, Minneapolis, MN, 17-21 June 1985 ; Terence P. Boyle, editor
- Philadelphia, Pa. : ASTM, c1987
- 208 p. : ill.
- ASTM special technical publication ; 940 STP ; 940 .
" ASTM publication code number (PCN) 04-940000-16"