Bent, R. K., & Kronenberg, H. H. (1949). Principles of secondary education (2nd ed.). McGraw-Hill.
Citazione stile Chigago Style (17a edizione)Bent, Rudyard Kipling, e Henry Harold Kronenberg. Principles of Secondary Education. 2nd ed. N.Y.: McGraw-Hill, 1949.
Citatione MLA (8a ed.)Bent, Rudyard Kipling, e Henry Harold Kronenberg. Principles of Secondary Education. 2nd ed. McGraw-Hill, 1949.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.