Katyal, J.C.
Micronutrients by J.C. Katyal and N.S. Randhaira - Rome FAO 1983 - x, 82 p. - FAO fertilizer and plant nutrition bulletin 7 .
Trace elements in nutrition
Micronutrients by J.C. Katyal and N.S. Randhaira - Rome FAO 1983 - x, 82 p. - FAO fertilizer and plant nutrition bulletin 7 .
Trace elements in nutrition