Preston, C. E. (1936). The high school teacher and his work: A textbook for teachers' coleges, university departments of education, land normal schools. McGraw-Hill Book company.
Citace podle Chicago (17th ed.)Preston, Carleton Estey. The High School Teacher and His Work: A Textbook for Teachers' Coleges, University Departments of Education, Land Normal Schools. New York and London: McGraw-Hill Book company, 1936.
Citace podle MLA (9th ed.)Preston, Carleton Estey. The High School Teacher and His Work: A Textbook for Teachers' Coleges, University Departments of Education, Land Normal Schools. McGraw-Hill Book company, 1936.
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