CLARK, JOHN R.
Primary arithmetic through experience, by John R. Clark, Arthur S. Otis & Caroline Hatton. NM: additions & revisions.
CLARK, JOHN R. Primary arithmetic through experience, by John R. Clark, Arthur S. Otis & Caroline Hatton. NM: additions & revisions. © 29Aug39; A132067. John R. Clark (A), Marlene Otis (W) & Caroline Hatton Clark (A); 9Jan67; R401421.
John R. Clark|A||Marlene Otis|W||Caroline Hatton Clark|A