පරිසර ආර්ථික විද්යාව
Kotagama, Hemasiri
පරිසර ආර්ථික විද්යාව [Text - Sinhala] = Parisara arthika vidyava = Kotagama, Hemasiri = Gunatilake, H. M. - Peradeniya Hemasiri Kotagama 2000 - iii, 136 p. 120 cm.
Text in Sinhala
9558890315
Economics of land and energy / natural resources and energy
333.7 / KOT
පරිසර ආර්ථික විද්යාව [Text - Sinhala] = Parisara arthika vidyava = Kotagama, Hemasiri = Gunatilake, H. M. - Peradeniya Hemasiri Kotagama 2000 - iii, 136 p. 120 cm.
Text in Sinhala
9558890315
Economics of land and energy / natural resources and energy
333.7 / KOT