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Now showing items 1-7 of 7

පාරිසරික වශයෙන් ධරණීය සංවර්ධනයක් සඳහා නව ප්‍රවේශයක්

Karunarathne, M. (Ministry of Environment and Parliamentary Affairs:Colombo, 1992)
ප්‍රවර්තනීය සංවර්ධනය සඳහා කාලගුණ විද්‍යාව සහ ජල විද්‍යාව

Mohottala, A.W. (Ministry of Environment and Parliamentary Affairs:Colombo, 1992)
Environment and development

Fernando, N. (Ministry of Environment and Parliamentary Affairs:Colombo, 1990)
A practical approach to environment conservation

Wickremasinghe, W. (Ministry of Environment and Parliamentary Affairs:Colombo, 1990)
Forestry and environment

Ranasinghe, H. (Ministry of Environment and Parliamentary Affairs:Colombo, 1993)
Indigenous knowledge and sustainable development

Wickremasinghe, W. (Ministry of Environment and Parliamentary Affairs:Colombo, 1994)
Utilization of natural resources:are we over concerned?

Ranaweera, K.A.H. (Ministry of Environment and Parliamentary Affairs:Colombo, 1990)

Now showing items 1-7 of 7