KNIGHT, F. B.
Standard service arithmetics. Grade 7. By F. B. Knight, J. W. Studebaker and G. M. Ruch.
KNIGHT, F. B. Standard service arithmetics. Grade 7. By F. B. Knight, J. W. Studebaker and G. M. Ruch. © 4Jan28; A1018311. Florence B. Knight (W of F. B. Knight), J. W. Studebaker (A) & Verness Fraser Ruch (W of G. M. Ruch); 30Nov55; R160292.
Florence B. Knight|W of F. B. Knight||J. W. Studebaker|A||Verness Fraser Ruch|W of G. M. Ruch