APA

Bent R. K., Kronenberg H. H., . (1955). Principles of secondary education. New York: McGraw-Hill.

Chicago

Bent Rudyard Kipling, Kronenberg Henry Harold, . 1955. Principles of secondary education. New York: McGraw-Hill.

Harvard

Bent R. K., Kronenberg H. H., . (1955). Principles of secondary education. New York: McGraw-Hill.

MLA

Bent Rudyard Kipling, Kronenberg Henry Harold, . Principles of secondary education. New York: McGraw-Hill. 1955.