=LDR 22 4500 =001 1006 =082 04$a526.3 MAL =100 1\$aMaling, D. H. =245 10$aCoordinate Systems and Map Projections =260 \\$aLondon :$bGeorge Philip and Son,$c1973 =650 \0$aBooks =852 \\$bFreeman Library$h526.3 MAL