Biosystematic study of aquatic insect of Sri -Lanka
Rupasinghe, P.S.
Biosystematic study of aquatic insect of Sri -Lanka - Colombo Colombo Univ. 1986 - 151, xlv
University of Colombo
595.7(28) / R86
Biosystematic study of aquatic insect of Sri -Lanka - Colombo Colombo Univ. 1986 - 151, xlv
University of Colombo
595.7(28) / R86