https://opac.cottonuniversity.ac.in/cgi-bin/koha/opac-search.pl?q=ccl=au%3A%22Hartwig%2C%20G.%20.%22&format=rss 4 0 50 ISBN: https://opac.cottonuniversity.ac.in/cgi-bin/koha/opac-detail.pl?biblionumber=16432 By Hartwig, G. .. London : Longmans Green & Co. , 1893 . ix,126p. : 18cm ..

]]> https://opac.cottonuniversity.ac.in/cgi-bin/koha/opac-detail.pl?biblionumber=16432 ISBN: https://opac.cottonuniversity.ac.in/cgi-bin/koha/opac-detail.pl?biblionumber=16587 By Hartwig, G. .. London : Longmans Green & Co. , 1893 . x,158p. : 18cm ..

]]> https://opac.cottonuniversity.ac.in/cgi-bin/koha/opac-detail.pl?biblionumber=16587 ISBN: https://opac.cottonuniversity.ac.in/cgi-bin/koha/opac-detail.pl?biblionumber=16755 By Hartwig, G. .. London : Longmans Green & Co. , 1894 . x,142p. : 18cm ..

]]> https://opac.cottonuniversity.ac.in/cgi-bin/koha/opac-detail.pl?biblionumber=16755 ISBN: https://opac.cottonuniversity.ac.in/cgi-bin/koha/opac-detail.pl?biblionumber=36156 By Hartwig, G. .. New York : Longmans Green & Co , 1891 . 127p. : 20cm ..

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