00907cam a2200277I 4500006256845MiAaHDL20110628000000.0m d cr bn ---auaua760421s1922 xx 000 0 eng 22002585 sdr-srlf1450867sdr-nrlfGLAD50483405-B145086707-AEW-5910(OCoLC)2129865DLCTOLCLULB1027.H23Hahn, Henry H.Projects in observation and practice teaching for high schools, normal schools and teachers' colleges,by H. H. Hahn.Lincoln,Chicago [etc.] :The University publishing company,1922.x, 147 p.26 cm."Publishers of references": p. 146-147.Mode of access: Internet.Project method in teaching.00625684520080101104952.020110628000000.020181119104545.02018-11-19T20:07:10Z2010-05-06T08:30:08ZSDR-SRLFEX LIBRIS - VOYAGERprepare.pl-004-008BKsdr-srlf1450867uc2SDRISRLFuc2.ark:/13960/t7np20f3jUC1450867ia.projectsinobserv00hahnialaia.projectsinobserv00hahnialaUCISRLF20181119iauc2.ark:/13960/t7np20f3j1922pdusbibnon-US bib date1 between 1901 and 1931UCNRLF20250224googleuc1.b45239111922pdusbibnon-US bib date1 between 1901 and 1931