John B. Clark, Ruth I. Baldwin & Caroline Hatton Clark, with the cooperation of Monica H. Hoye.
Arithmetic for young America. Grade 4.
R631435. Arithmetic for young America. Grade 4. By John B. Clark, Ruth I. Baldwin & Caroline Hatton Clark, with the cooperation of Monica H. Hoye. NM: revisions & corrections. © 3Jan49; A29512. John R. Clark & Caroline Hatton Clark (A); 14Apr76; R631435.
John R. Clark & Caroline Hatton Clark|A