Robert Lee Morton, Merle Gray, Elizabeth Springstun & William L. Schaaf.
Making sure of arithmetic, teacher's guide to accompany grade eight.
R590537. Making sure of arithmetic, teacher's guide to accompany grade eight. By Robert Lee Morton, Merle Gray, Elizabeth Springstun & William L. Schaaf. © 4Feb47; AA44415. Robert Lee Morton & Merle Gray (A); 14Nov74; R590537.
Robert Lee Morton & Merle Gray|A