Programmed course in basic algebra
512.9
B393P Beck, William C. and Trier, James R.
Programmed course in basic algebra
-- Massachusetts : Addison-Wesley , 1971
149714 458p.
Algebra-Programmed instruction
B393P Beck, William C. and Trier, James R.
Programmed course in basic algebra
-- Massachusetts : Addison-Wesley , 1971
149714 458p.
Algebra-Programmed instruction