Selberg, Edith Marie. Discovering science in the elementary school [by] Edith M. Selberg, Louise A. Neal [and] Matthew F. Vessel. - Reading, Mass., Addison-Wesley Pub. Co. [1970] - xxix, 495 p. illus. 24 cm. - Addison-Wesley series in education . Bibliography: p. 469-486. LCCN: 73087044 Subjects--Topical Terms: Science--Study and teaching (Elementary) LC Class. No.: LB1584 / .Se4 Dewey Class. No.: 372.3/5