WALKER, Miles <br/><br/>
"P.I.C." slide rules: book of instructions for the standard and reitz patterns / 
[by] Miles Walker 
 - [S.l.]  Joseph Harrison  1947 
 - 42 p. 
<br/><br/><label>ISBN: </label>91433 
<br/><br/><label>Dewey Class. No.: </label>510.83  / WAL