Anderson, Vernon Ellsworth Principles and procedures of curriculum improvement. - 2nd ed. - New York Ronald Press Co. c 1965 - 498 p. 24 cm. - Douglass series in education . LCCN: 56006256 Subjects--Topical Terms: Education--Curricula. LC Class. No.: LB1570 / .A65 Dewey Class. No.: 375