Cita APA (7a ed.)

Cairo, M., & Soncin, L. (2014). Nelson social studies. Nelson Education.

Cita Chicago Style (17a ed.)

Cairo, Mary, y Luci Soncin. Nelson Social Studies. Toronto, Ontario: Nelson Education, 2014.

Cita MLA (9a ed.)

Cairo, Mary, y Luci Soncin. Nelson Social Studies. Nelson Education, 2014.