Trend analysis of the use of natural resources in the constraction industry
Perera , H.D.B.S.
Trend analysis of the use of natural resources in the constraction industry - Colombo The Deparment of National planning 2002 - vi,54 p. 24 cm.
9559017098
ECONOMICS
ENVIRONMENTAL MANAGEMENT-SRI LANKA
NATURAL RESOURSES OF SRI LANKA
333.7 / PER
Trend analysis of the use of natural resources in the constraction industry - Colombo The Deparment of National planning 2002 - vi,54 p. 24 cm.
9559017098
ECONOMICS
ENVIRONMENTAL MANAGEMENT-SRI LANKA
NATURAL RESOURSES OF SRI LANKA
333.7 / PER