Sri Lanka science and technology indicators
de Silva , M. A. T.
Sri Lanka science and technology indicators part iii - Colombo National resources energy & science authority of Sri Lanka 1991 - [10 ],130 p. Illustration 29 cm.
SCIENCE AND TECHNOLOGY
RESEARCH
609.5493 / SRI
Sri Lanka science and technology indicators part iii - Colombo National resources energy & science authority of Sri Lanka 1991 - [10 ],130 p. Illustration 29 cm.
SCIENCE AND TECHNOLOGY
RESEARCH
609.5493 / SRI