APA

Bent R. K., Kronenberg H. H. & Boardman C. C. (1970). Principles of secondary education. New York: McGraw-Hill.

Chicago

Bent Rudyard Kipling, Kronenberg Henry Harold and Boardman Charles C. 1970. Principles of secondary education. New York: McGraw-Hill.

Harvard

Bent R. K., Kronenberg H. H. and Boardman C. C. (1970). Principles of secondary education. New York: McGraw-Hill.

MLA

Bent Rudyard Kipling, Kronenberg Henry Harold and Boardman Charles C. Principles of secondary education. New York: McGraw-Hill. 1970.