Biological nitrogen fixation
Subba Rao, N.S.
Biological nitrogen fixation N.S. Subba Rao, G.S. Venkataraman and S. Kannaiyan. - 2nd. ed.. - New Delhi Publication and Information Division, [n.d.] - iv,111p., 24cm.
631.847 / S93B
Biological nitrogen fixation N.S. Subba Rao, G.S. Venkataraman and S. Kannaiyan. - 2nd. ed.. - New Delhi Publication and Information Division, [n.d.] - iv,111p., 24cm.
631.847 / S93B