Poulden, L. A. The duodecimal book with tables : for the use of surveyors architects, builders & students / L. A. Poulden - 2nd rev.ed. - London : Cleaver-Home Press, c1959 - 31 p. : ill. ; 19 cm. ISBN: Rs. 20.00 Subjects--Topical Terms: MathematicsLogarithmsDuodecimal system--Tables Dewey Class. No.: 510.83