A Handbook of Soil Fertilizer and Manure
P.K. Gupta, Agrobios, 2011, Second Enlarged Edition, xxiv, 564 p, ISBN : 9788177541526, $75.00 (Includes free airmail shipping)
P.K. Gupta, Agrobios, 2011, Second Enlarged Edition, xxiv, 564 p, ISBN : 9788177541526, $75.00 (Includes free airmail shipping)