APA
Bent R. K., Boardman C. C. & Kronenberg H. H. (1970). Principles of secondary education. New York: McGraw Hill.
Chicago
Bent Rudyard K, Boardman Charles C.(Ed) and Kronenberg Henry H.(Ed). 1970. Principles of secondary education. New York: McGraw Hill.
Harvard
Bent R. K., Boardman C. C. and Kronenberg H. H. (1970). Principles of secondary education. New York: McGraw Hill.
MLA
Bent Rudyard K, Boardman Charles C.(Ed) and Kronenberg Henry H.(Ed). Principles of secondary education. New York: McGraw Hill. 1970.