Circular series A
Vernon L. Nickell
by Kenneth D. Benne and Bozidar Muntyan
Vernon L. Nickell 1949 Circular series A No.51 . Illinois secondary school curriculum program bulletin ; No.7
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V.L. Nickell : Superintendent of Public Instruction [1946] Circular series A no. 32
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compiled by N.E. Hutson ; issued by Vernon L. Nickell
[Office of the Superintendent of Public Instruction, State of Illinois] 1945 Circular series A no. 26
V. L. Nickell 1945 Circular series A no. 21