01212cam a2200373M 4500 ocn456645959 OCoLC 20210902094417.0 711214t19661954ilua 000 0 eng 54010718 DLC eng QE2 OCLCF OCLCO OCLCQ OCLCO WYU ZAAPA GB5411995 bnb 1060527081 (OCoLC)456645959 (OCoLC)1060527081 LB1607 .B87 1954 373 18 ZAAA Butler, Frank A., 1894- The improvement of teaching in secondary schools. 3d ed. [Chicago] : University of Chicago Press, [1966 c1954] 433 pages illustrations 24 cm text txt rdacontent unmediated n rdamedia volume nc rdacarrier Includes bibliographical references and index. Teaching. Education, Secondary. Learning, Psychology of. Education, Secondary. fast (OCoLC)fst00903252 Learning, Psychology of. fast (OCoLC)fst00995009 Teaching. fast (OCoLC)fst01144565 C0 ZAAPA 51716 51716 0 0 ddc 0 0 DAPA DAPA 2021-09-03 0 373 BUT APA016604 2021-09-03 1 2021-09-03 BK