WILLIS, MARY.
A test of general proficiency in the field of social studies. Form QR. (Cooperative general achievement tests, rev. ser., 1) By Mary Willis & others of the Cooperative Test Service Staff.
WILLIS, MARY. A test of general proficiency in the field of social studies. Form QR. (Cooperative general achievement tests, rev. ser., 1) By Mary Willis & others of the Cooperative Test Service Staff. © 1Aug40; AA404451. Educational Testing Service (PWH); 4Oct67; R419143.
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