Dyfyniad APA

Alexander, G. G. U. a. W. M. Innovations in Secondary Education. Holt, Rinehart and Winston.

Dyfyniad Arddull Chicago

Alexander, Glenys G. Unruh and William M. Innovations in Secondary Education. Holt, Rinehart and Winston.

Dyfyniad MLA

Alexander, Glenys G. Unruh and William M. Innovations in Secondary Education. Holt, Rinehart and Winston.

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