Alexander, G. G. U. a. W. M. Innovations in Secondary Education. Holt, Rinehart and Winston.
Cita Chicago Style (17a ed.)Alexander, Glenys G. Unruh and William M. Innovations in Secondary Education. Holt, Rinehart and Winston.
Cita MLA (8a ed.)Alexander, Glenys G. Unruh and William M. Innovations in Secondary Education. Holt, Rinehart and Winston.
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