Rio Negro: Rich life in Poor Water. SPB Academica Publishing, The Hague

Publication link:  http://journals.cambridge.org/action/displayAbstract?fromPage=online&aid=5950012&fileId=S0376892900032239

Publication Year:  1988

Publication Author:  Goulding, M., M. L. Carvalho, and E. G. Ferreira.

Publication Magazine:  Biodiversity and Conservation