Bird, R. J. <br/><br/>
Co-ordinate location tables :  Cartesian (x,y) ordinates of equispaced points on circles, intended for use particularly with numerically controlled machines / 
Richard Bird. 
 - Brighton :  Machinery Publishing,  1969. 
 - 263 p.  ill. 
<br/><br/><label>ISBN: </label>0853330166 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Machine-tools--Numerical control--Tables.<br/>Circle--Tables.<br/>Coordinates--Tables.