https://opac.cottonuniversity.ac.in/cgi-bin/koha/opac-search.pl?q=ccl=au%3A%22Singh%2C%20R%20N%20.%22&format=rss 4 0 50 ISBN:0-07-460347-7 https://opac.cottonuniversity.ac.in/cgi-bin/koha/opac-detail.pl?biblionumber=20176 By Singh, R N .. New Delhi : Tata Mcgraw-Hill Publishing Company Ltd , 1991 . xvi,538p. : 23cm .. 0-07-460347-7

]]> https://opac.cottonuniversity.ac.in/cgi-bin/koha/opac-detail.pl?biblionumber=20176 ISBN: https://opac.cottonuniversity.ac.in/cgi-bin/koha/opac-detail.pl?biblionumber=26514 By Singh, R.N. .. Agra : Ratan Prakashan Mandir , 1917 . 900p. ; 22cm..

]]> https://opac.cottonuniversity.ac.in/cgi-bin/koha/opac-detail.pl?biblionumber=26514 ISBN: https://opac.cottonuniversity.ac.in/cgi-bin/koha/opac-detail.pl?biblionumber=27521 By Singh , Mohinder .. New Delhi : Concept Publishing Comp. , 1979 . 144p. ; 22cm.

]]> https://opac.cottonuniversity.ac.in/cgi-bin/koha/opac-detail.pl?biblionumber=27521 ISBN: https://opac.cottonuniversity.ac.in/cgi-bin/koha/opac-detail.pl?biblionumber=49615 By Singh, R. N. .. Agra : Ratan Prakashan , 1967 . iv,535p. ; 22 cm...

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