School Mathematics Study Group. (1965). Programmed first course in algebra: Teacher's commentary (Revised form H.). School Mathematics Study Group.
Cita Chicago (17th ed.)School Mathematics Study Group. Programmed First Course in Algebra: Teacher's Commentary. Revised form H. California: School Mathematics Study Group, 1965.
Cita MLA (9th ed.)School Mathematics Study Group. Programmed First Course in Algebra: Teacher's Commentary. Revised form H. School Mathematics Study Group, 1965.
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