http://www.opac.lib.esn.ac.lk/cgi-bin/koha/opac-search.pl?q=ccl=au%3A%22Donahue%20Roy%20L.%22&sort_by=acqdate_dsc&format=rss 5 0 50 ISBN:876923899 http://www.opac.lib.esn.ac.lk/cgi-bin/koha/opac-detail.pl?biblionumber=81600 By DONAHUE, Roy L..
Newdelhi Prentice-Hall of india ltd. 1989 .
xv, 667p. 876923899

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]]> http://www.opac.lib.esn.ac.lk/cgi-bin/koha/opac-detail.pl?biblionumber=81600 ISBN:876923899 http://www.opac.lib.esn.ac.lk/cgi-bin/koha/opac-detail.pl?biblionumber=81602 By DONAHUE, Roy L..
Newdelhi Prentice-Hall of india ltd. 1989 .
xv, 667p. 876923899

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]]> http://www.opac.lib.esn.ac.lk/cgi-bin/koha/opac-detail.pl?biblionumber=81602 ISBN:138222886 http://www.opac.lib.esn.ac.lk/cgi-bin/koha/opac-detail.pl?biblionumber=39871 By Donahue Roy L..
Newjersey Prentice hall 1983 .
xv,667p. 138222886

]]> Place hold on Soils. An introduction to soils and plant growth

]]> http://www.opac.lib.esn.ac.lk/cgi-bin/koha/opac-detail.pl?biblionumber=39871 ISBN:876923899 http://www.opac.lib.esn.ac.lk/cgi-bin/koha/opac-detail.pl?biblionumber=81601 By DONAHUE, Roy L..
Newdelhi Prentice-Hall of india ltd. 1989 .
xv, 667p. 876923899

]]> Place hold on SOILS

]]> http://www.opac.lib.esn.ac.lk/cgi-bin/koha/opac-detail.pl?biblionumber=81601 ISBN:876923899 http://www.opac.lib.esn.ac.lk/cgi-bin/koha/opac-detail.pl?biblionumber=81603 By DONAHUE, Roy L..
Newdelhi Prentice-Hall of india ltd. 1989 .
xv, 667p. 876923899

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]]> http://www.opac.lib.esn.ac.lk/cgi-bin/koha/opac-detail.pl?biblionumber=81603