Investigating school mathematics /
Robert E. Eicholz, Phares G. O. Daffer, Charles R. Fleenor ; collaborator, teachers' edition, Theresa Burke.
- Don Mills, Ont. : Adddison-Wesley, 1973.
- [352] p. : ill., diagrs., chiefly col. photos.
- (Addison-Wesly mathematics series) .