Cita APA (7th ed.)

Wright, R. J., Stanger, G., Stafford-Dillon, A. K., & Martland, J. (2015). Teaching number in the classroom with 4-8 year olds (2nd edition.). SAGE.

Cita Chicago (17th ed.)

Wright, Robert J., Garry Stanger, Ann K. Stafford-Dillon, i Jim Martland. Teaching Number in the Classroom with 4-8 Year Olds. 2nd edition. Los Angeles: SAGE, 2015.

Cita MLA (9th ed.)

Wright, Robert J., et al. Teaching Number in the Classroom with 4-8 Year Olds. 2nd edition. SAGE, 2015.