DUTTON, W. H., PETRIE, C. C., & ADAMS, L. (1970). Arithmetic for teachers.-- Ed. 2. Prentice-Hall.

DUTTON, Wilbur H., Colin C. PETRIE, and L.J ADAMS. Arithmetic for Teachers.-- Ed. 2. New Jersey: Prentice-Hall, 1970.

DUTTON, Wilbur H., et al. Arithmetic for Teachers.-- Ed. 2. Prentice-Hall, 1970.