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robert c hammock
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Supervising instruction in secondary schools
Robert C. Hammock · McGraw-Hill
316 sayfa · 1955
Secondary School supervision / Administration scolaire / Discipline scolaire
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Yazar
1 cilt bulundu.
Robert C. Hammock · McGraw-Hill
316 sayfa · 1955
Secondary School supervision / Administration scolaire / Discipline scolaire