Dyfyniad APA

ASSOCIATION, N. E. Educational leadership: Progress and possibilities, eleventh yearbook. The National Education Association.

Dyfyniad Arddull Chicago

ASSOCIATION, NATIONAL EDUCATION. Educational Leadership: Progress and Possibilities, Eleventh Yearbook. The National Education Association.

Dyfyniad MLA

ASSOCIATION, NATIONAL EDUCATION. Educational Leadership: Progress and Possibilities, Eleventh Yearbook. The National Education Association.

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