00519cam a22002051 4500 sa 64006446 DLC 20260227112039.0 920923s1962 ii a 000 0 tam sa 64006446 (OCoLC)26654373 DLC NRU DLC QA95 .G66 Kōpālakiruṣṇan̲, Kalvi, 1912- Mūḷaikku vēlai. [1962?] 103 p. : illus. 18 cm. In Tamil. Mathematical recreations. 59704 59704