=LDR 22 4500 =001 5669 =082 04$a711.409415 GRI =100 1\$aGrist, Berna =245 10$aTwenty years of planning: a review of the system since 1963 =260 \\$aDublin :$bAn Foras Forbartha,$c1983 =650 \0$aBooks =852 \\$bFreeman Library$h711.409415 GRI