විද්යාත්මක කෘෂිකර්මය සත්ව පාලනය
Publication details: Colombo: Rathnakara, 1966.Description: x,185p.; ill. 23cmTitle translated: Widyathmaka Krushikarmaya Sathwa PalanayaSubject(s): DDC classification:- 636 GUN

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