Singh, R.S. .
Plant diseases / by R.S. Singh. - 5th ed. / - New Delhi : Oxford & IBH Publishing Co , 1983 - xvi, 608 p. :
Botany- Plant diseases
I:4 / M3
Plant diseases / by R.S. Singh. - 5th ed. / - New Delhi : Oxford & IBH Publishing Co , 1983 - xvi, 608 p. :
Botany- Plant diseases
I:4 / M3