=LDR 22 4500 =001 45 =082 04$a526.09162 RIT =100 1\$aRitchie, G. S. =245 10$aThe Admiralty Chart: British Naval Hydrography in the Nineteenth Century =260 \\$aLondon :$bHollis and Carter,$c1967 =650 \0$aBooks =852 \\$bFreeman Library$h526.09162 RIT