TY - GEN AU - Prasad , A.B. AU - Vaishampayan , A. TI - Biology and application of nitrogen fixing organizam: problems and prospect SN - 8172330847 U1 - 572.545 PY - 1994/// CY - India PB - Scientific Publishers KW - PHOTOAUTOTROPHIC NITROGEN FIXATION KW - BIOLOGY KW - PHYSIOLOGY ER -