=LDR 22 4500 =001 5452 =082 04$a333.717 SEC =100 1\$aSecretary of State for the Environment, UK =245 10$aSustainable development: the UK strategy =260 \\$aLondon :$bHMSO,$c1994 =650 \0$aBooks =852 \\$bFreeman Library$h333.717 SEC