Clarke,C Arthur චන්ද්ර ගවේෂකයෝ - S&T Prakashak Wellampitiya 2011 - 247p 1 - 2023-10-11 Thathsarani Bulathsinhala ISBN: 978-955-1080-11-2 Nat. Bib. No.: 0003775 Nat. Bib. Agency Control No.: CLA Universal Decimal Class. No.: 891.483