Algebraic Structures and Probability. [By] H. Andrew Elliott, Kenneth D. Fryer, James C. Gardner, Norman J. Hill
Functions, Relations, and Transormations. [By] H. Andrew Elliott, Kenneth D. Fryer, James C. Gardner, Norman J. Hill
Geometry in the Classroom; New Concepts and Methods [by] H. A. Elliott, James R. Mac Lean, and Janet M. Jorden