At head of title: University of Illinois bulletin. vol. XXI, no. 41.Bibliography: p. 15-16.Mode of access: Internet
On cover: University of Illinois bulletin. vol. xxix, no. 39."Annotated bibliography": p. 35-77.Mode...
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At head of title: Bureau of educational research. College of education.On cover: University of Illin...
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At head of title: University of Illinois bulletin. vol. XXVII, no. 5 ... Bureau of educational resea...
On cover: University of Illinois bulletin, vol. xxviii, no. 42.At head of title: Bureau of education...
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Cover title.At head of title: University of Illinois bulletin, v.20, no.6.Mode of access: Internet
On cover: University of Illinois bulletin. vol. XVIII, no. 21.Mode of access: Internet
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Vols. 1-4, v.18, no.3- v.23, no.3. issued as University of Illinois bulletin.Mode of access: Interne...
At head of title: University of Illinois bulletin. vol.x, no. 8.Cover title.Mode of access: Internet
Cover title.At head of title: University of Illinois bulletin, v.24, no. 49.Mode of access: Internet
On cover: University of Illinois bulletin. vol. xxix, no. 39."Annotated bibliography": p. 35-77.Mode...
On cover: University of Illinois bulletin. vol xxvii, no.32At head of title: Bureau of educational ...
On cover: University of Illinois bulletin. vol.xxii, no. 22.Mode of access: Internet
On cover: University of Illinois bulletin. vol.xxii, no. 2.Bibliography: p. 57-66.Mode of access: In...
At head of title: Bureau of educational research. College of education.On cover: University of Illin...
On cover: University of Illinois bulletin. vol. xxii, no. 30.Mode of access: Internet
At head of title: University of Illinois bulletin. vol. XXVII, no. 5 ... Bureau of educational resea...
On cover: University of Illinois bulletin, vol. xxviii, no. 42.At head of title: Bureau of education...
On cover: University of Illinois bulletin. vol. xx, no. 7.Mode of access: Internet
Cover title.At head of title: University of Illinois bulletin, v.20, no.6.Mode of access: Internet
On cover: University of Illinois bulletin. vol. XVIII, no. 21.Mode of access: Internet
On cover: Universtiy of Illinois bulletin. vol. XIX, no. 9.Mode of access: Internet.1
Vols. 1-4, v.18, no.3- v.23, no.3. issued as University of Illinois bulletin.Mode of access: Interne...
At head of title: University of Illinois bulletin. vol.x, no. 8.Cover title.Mode of access: Internet
Cover title.At head of title: University of Illinois bulletin, v.24, no. 49.Mode of access: Internet
On cover: University of Illinois bulletin. vol. xxix, no. 39."Annotated bibliography": p. 35-77.Mode...
On cover: University of Illinois bulletin. vol xxvii, no.32At head of title: Bureau of educational ...
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