John R. Clark, Ruth I. Baldwin & Caroline Hatton Clark, with the cooperation of Monica M. Hoye.
Arithmetic for young America, revised edition; teacher's manual. Grade 4.
R631431. Arithmetic for young America, revised edition; teacher's manual. Grade 4. By John R. Clark, Ruth I. Baldwin & Caroline Hatton Clark, with the cooperation of Monica M. Hoye. NM: revisions & corrections. © 3Jan49; A29506. John R. Clark & Caroline Hatton Clark (A); 14Apr76; R631431.
John R. Clark & Caroline Hatton Clark|A