Ray's new higher arithmetic (Ray's arithmetic series) (Ray's arithmetic series),

Ray's new practical arithmetic (Ray's arithmetic series) (Ray's arithmetic s...

Key to Rays New Higher Arithmetic (Ray's Arithmetic), Joseph Ray, 9780880620567

Ray's New Test Examples in Arithmetic by De Beck, B. O. M.

Ray's new higher arithmetic (Ray's arithmetic series) (Ray's arithmetic seri...

Key to Ray's New Higher Arithmetic by Ray, Joseph

Vintage Ray's New Arithmetics