Whither soil research : proceedings

“…International Congress of Soil Science…”

Transactions of the third international congress of soil science held at Oxford, England July 30th to August 7th, 1935.

“…International Congress of Soil Science…”

Whither soil research : proceedings

“…International Congress of Soil Science…”

Verticals rice soils of tropics : symposia papers-2

“…International Congress of Soil Science…”

Review of soil research India : proceedings

“…International Congress of Soil Science…”

Non-symbiotic nitrogen fixation organic matter tropics: symposia papers I : proceedings

“…International Congress of Soil Science…”

Managing soil resources: plenary session papers : proceedings

“…International Congress of Soil Science…”

Desertification soils policy: symposia papers III : proceedings

“…International Congress of Soil Science…”

Managing soil resources to meet the challenges to mankind : abstracts of the national congress of soil science New Delhi, India.

“…International Congress of Soil Science…”

Managing soil resources to meet the challenges to mankind: presidential address of 12th international congress of soil science New Delhi, India [on] 8th-16th February 1982.

“…International Congress of Soil Science New Delhi, India…”