Bent, Rudyard Kipling, 1901- Principles of secondary education / Rudyard K. Bent and Henry H. Kronenberg. - 3rd ed. - New York : McGraw-Hill, 1955. - 542 p. : ill. ; 24 cm. - McGraw-Hill series in education. . Subjects--Topical Terms: Education, Secondary----United States.----Education ----United States.---- Dewey Class. No.: 373 BEN