1. Phosphorus in Freshwater Ecosystems :
پدیدآورنده : edited by Gunnar Persson, Mats Jansson.
کتابخانه: Center and Library of Islamic Studies in European Languages (Qom)
موضوع : Aquatic biology.,Life sciences.,Nature conservation.
رده :
QH545
.
P5
E358
1988
2. Phosphorus in freshwater ecosystems : proceedings of a symposium held in Uppsala, Sweden, 25-28 Sept. 1985
پدیدآورنده : )edited by( Gunnar Persson, Mats Jansson
کتابخانه: Library of College of Science University of Tehran (Tehran)
موضوع : Environmental aspects -- Congresses ، Phosphorus,Congresses ، Freshwater ecology
رده :
QH
545
.
P5
P48
1988
