https://library.snu.edu.in/cgi-bin/koha/opac-search.pl?q=ccl=au%3A%22Derek%20O%27%20Brien%22&sort_by=&format=rss 5 0 50 ISBN:9780143332206 https://library.snu.edu.in/cgi-bin/koha/opac-detail.pl?biblionumber=9956 ]]> By O'Brien, Derek.
New Delhi. : Puffin Books., 2011 .
163 p. ; 22 cm..
9780143332206

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]]> https://library.snu.edu.in/cgi-bin/koha/opac-detail.pl?biblionumber=9956 ISBN:9790143029532 https://library.snu.edu.in/cgi-bin/koha/opac-detail.pl?biblionumber=40328 By Brien, Derek O'.
- New Delhi ;Penguin Books 2003 .
179p. 9790143029532

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]]> https://library.snu.edu.in/cgi-bin/koha/opac-detail.pl?biblionumber=40328 ISBN: https://library.snu.edu.in/cgi-bin/koha/opac-detail.pl?biblionumber=55712 By Derek O' Brien.
New Delhi, Penguin Books 2006

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]]> https://library.snu.edu.in/cgi-bin/koha/opac-detail.pl?biblionumber=55712 ISBN: https://library.snu.edu.in/cgi-bin/koha/opac-detail.pl?biblionumber=56414 By O'brien, Derek.
New Delhi :Penguin Books 2004 .
118p. 18cm. .

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]]> https://library.snu.edu.in/cgi-bin/koha/opac-detail.pl?biblionumber=56414 ISBN:9780144000647 https://library.snu.edu.in/cgi-bin/koha/opac-detail.pl?biblionumber=67862 ]]> By O' Brien, Derek , Editor.
New Delhi : Penguin Books India Pvt. Ltd. 2006 .
975p. ; 18cm.
9780144000647

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