Gasperson, K. D.
A Hand book of Ceylon soils with specific reference to the Jaffna peninsula D. K. Gasperson - Jaffna St. joseph's catholic press - 38 p.
631.4 / GAS
A Hand book of Ceylon soils with specific reference to the Jaffna peninsula D. K. Gasperson - Jaffna St. joseph's catholic press - 38 p.
631.4 / GAS