Smith, Robert McNeil. Teacher diagnosis of educational difficulties. Robert M. Smith: editor. - Columbus, Ohio C. E. Merrill [1969] - x, 226 p. 24 cm. - Merrill's international education series . Includes bibliographies. LCCN: 69011433 Subjects--Topical Terms: Grading and marking Students LC Class. No.: LB3051 / .S59 Dewey Class. No.: 371.3/0282