<![CDATA[ Search for 'au:"R. W. Ditchburn"']]>

<![CDATA[ Search for 'au:"R. W. Ditchburn"']]> http://civ.uap.edu.pe/cgi-bin/koha/opac-search.pl?q=ccl=au%3A%22R.%20W.%20Ditchburn%22&format=rss2 2 0 50 OPTICA ISBN http://civ.uap.edu.pe/cgi-bin/koha/opac-detail.pl?biblionumber=87285 By R.W. DITCHBURN . 1982

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]]> http://civ.uap.edu.pe/cgi-bin/koha/opac-detail.pl?biblionumber=87285 Óptica ISBN http://civ.uap.edu.pe/cgi-bin/koha/opac-detail.pl?biblionumber=91888 By R. W. Ditchburn. 1982

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