Yazar
k sankaran unni
2 cilt bulundu.
Cilt sonuçları
Ecology of Indian rivers
K. Sankaran Unni · Intrnational book distribution Dehradun
312 sayfa · 2003
Stream ecology / Water quality management / Rivers
Ecology of river Narmada
K. Sankaran Unni · A.P.H. Pub. Corp.
371 sayfa · 1996
Water / Stream ecology / Environmental aspects / Ecosystem management / Pollution