(Bulletin 1939, Misc. no. 3.) [This publication prepared in connection with 8th conference of World Federation of Education Associations.]
Notes:
(Bulletin 1939, Misc. no. 3.) [This publication prepared in connection with 8th conference of World Federation of Education Associations.] * For Sale by Superintendent of Documents. Paper, 15c.
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* For Sale by Superintendent of Documents. Paper, 15c.