na INLIS000000000000801 20260702113303 260702 0 0010-1021000801 574.6 574.6 NEW r Newton, W. Recent development in netrogen fixation / W. Newton (et.al) London : Academic Press, 1977 622 p. : ill. ; 29 cm ANIMAL BREEDING DEVELOPMENT. NITROGENT FIXATION 10/BPT-C/2000/C