APA (7th ed.) Citation

De Bower, C. E., & De Bower, K. L. (1990). A decalogue for teaching mathematics. Phi Delta Kappa Educational Foundation.

Chicago Style (17th ed.) Citation

De Bower, Carrol E., and Kari L. De Bower. A Decalogue for Teaching Mathematics. Bloomington, Ind: Phi Delta Kappa Educational Foundation, 1990.

MLA (9th ed.) Citation

De Bower, Carrol E., and Kari L. De Bower. A Decalogue for Teaching Mathematics. Phi Delta Kappa Educational Foundation, 1990.