TANDON HLS, . (2008). METHODS OF ANALYSIS OF SOILS PLANTS WATERS FERTILIZERS & ORGANIC MANURES. New Delhi: FERTILIZER DEVELOPMENT.
TANDON HLS, . 2008. METHODS OF ANALYSIS OF SOILS PLANTS WATERS FERTILIZERS & ORGANIC MANURES. New Delhi: FERTILIZER DEVELOPMENT.
TANDON HLS, . METHODS OF ANALYSIS OF SOILS PLANTS WATERS FERTILIZERS & ORGANIC MANURES. New Delhi: FERTILIZER DEVELOPMENT. 2008.