ROYCHOWDHURY, Supriya. Accumulation and movement of available phosphorus in sewage treated Delhi soil / Supriya Roychoudhury - New Delhi : Jawaharlal Nehru University, 1986. M.Phil - SES, JNU, 1986. ISBN: 1 Subjects--Topical Terms: Soil science Index Terms--Genre/Form: Dissertation Dewey Class. No.: 631.45456 / R813 Ac