Matèries dins de la cerca
Matèries dins de la cerca
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1Washington, National Retired Teachers Association.28 v. ill. 29 cm.
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2New York, Carnegie Foundation for the Advancement of Teaching.no. 26 cm.Also issued online.
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3New York, Carnegie Foundation for the Advancement of Teaching.no. 26 cm.Center for Research Libraries: no.23 (1929)
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