WALKER, Miles
"P.I.C." slide rules: book of instructions for the standard and reitz patterns / [by] Miles Walker - [S.l.] Joseph Harrison 1947 - 42 p.
91433
510.83 / WAL
"P.I.C." slide rules: book of instructions for the standard and reitz patterns / [by] Miles Walker - [S.l.] Joseph Harrison 1947 - 42 p.
91433
510.83 / WAL