ENGLISH, R. (2013). Teaching calculation: Audit & test. SAGE.
Cita Chicago (17th ed.)ENGLISH, Richard. Teaching Calculation: Audit & Test. SAGE, 2013.
Cita MLA (9th ed.)ENGLISH, Richard. Teaching Calculation: Audit & Test. SAGE, 2013.
Atenció: Aquestes cites poden no estar 100% correctes.