School Mathematics Study Group. (1966). Inservice course in mathematics for primary school teachers (rev. ed.). Leland Stanford Junior University.
Chicago-viite (17. p.)School Mathematics Study Group. Inservice Course in Mathematics for Primary School Teachers. rev. ed. Stanford, CA: Leland Stanford Junior University, 1966.
MLA-viite (9. p.)School Mathematics Study Group. Inservice Course in Mathematics for Primary School Teachers. rev. ed. Leland Stanford Junior University, 1966.
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