(1986). Assessing biological integrity in running waters: A method and its rationale / James R. Karr [and others].
Chicago-referens (17:e uppl.)Assessing Biological Integrity in Running Waters: A Method and Its Rationale / James R. Karr [and Others]. 1986.
MLA-referens (9:e uppl.)Assessing Biological Integrity in Running Waters: A Method and Its Rationale / James R. Karr [and Others]. 1986.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.