]]>http://opac.uvas.edu.pk/cgi-bin/koha/opac-detail.pl?biblionumber=5128Soil Conditions and Plant Growth ISBN
http://opac.uvas.edu.pk/cgi-bin/koha/opac-detail.pl?biblionumber=7573
By Russell, E. Walter.
London: ELBS/Longman; 1961
. 685p.;
]]>http://opac.uvas.edu.pk/cgi-bin/koha/opac-detail.pl?biblionumber=7573Fundamentals of Soil Science ISBN
http://opac.uvas.edu.pk/cgi-bin/koha/opac-detail.pl?biblionumber=7615
By C.E. Millar .
New York: Jhon Wiley & Sons; 1965
. 510p.;