Symposium on the Development of the South-East Dry Zone (1992 : April 29-30 : Colombo)
Proceedings : - New Delhi National Institute of Science, Technology and Development Studies (NISTADS) 1986 - xxvii, 505p.
1992 : Ap.29-30
631.7 SYM
Proceedings : - New Delhi National Institute of Science, Technology and Development Studies (NISTADS) 1986 - xxvii, 505p.
1992 : Ap.29-30
631.7 SYM