Wazir Agha Library, UOS Search for 'au:Nielsen, Kaj Leo,'

Logarithmic and trigonometric tables, five places,

By Nielsen, Kaj Leo,. New York, Barnes & Noble, inc. 1943 . 3 p. l., ix-xxx p., 2 l., 125 p. 21 cm..

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Plane geometry problems with solutions /

By Horblit, Marcus.. New York, Barnes & Noble, inc. 1947 . v, 197 p. 21 cm..

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Plane & spherical trigonometry;

By Nielsen, Kaj Leo,. New York, Barnes & Noble 1954 . 189, 125 p. , Previous editions published under title: An outline of plane and spherical trigonometry. 21 cm..

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