Smith, P. (1983). Activities for primary mathematics. Macmillan.
Cita Chicago (17th ed.)Smith, Peter. Activities for Primary Mathematics. London: Macmillan, 1983.
Cita MLA (9th ed.)Smith, Peter. Activities for Primary Mathematics. Macmillan, 1983.
Atenció: Aquestes cites poden no estar 100% correctes.