KNIGHT, F. B.
Self-help arithmetic work-book, 7, by F. B. Knight, G. M. Ruch & J. W. Studebaker. NM: new matter.
KNIGHT, F. B. Self-help arithmetic work-book, 7, by F. B. Knight, G. M. Ruch & J. W. Studebaker. NM: new matter. © 18Nov40; AA350638. Scott, Foresman & Co. (PWH); 2Jan68; R426086.
Scott, Foresman & Co.|PWH