Impact of acid rain and deposition on aquatic biological systems/ by Isom, Billy G., Dennis, Sally G., Bates, John M., American Society for Testing and Materials

Rationale for sampling and interpretation of ecological data in the assessment of freshwater ecosystems /ceditor, Billy G Isom by 476232 Symposium on Rationale for sampling and interpretation of ecological data in the assessment of freshwater ecosystems, 1986, Isom, Billy G.