Cita APA (7a ed.)

Lansford, L., Dummett, P., Stephenson, H., Hughes, J., Mulanovic, P., Millin, S., & Harrison, M. (2016). Keynote: Advanced. National Geographic Learning.

Cita Chicago Style (17a ed.)

Lansford, Lewis, Paul Dummett, Helen Stephenson, John Hughes, Paula Mulanovic, Sandy Millin, y Mike Harrison. Keynote: Advanced. Andover: National Geographic Learning, 2016.

Cita MLA (9a ed.)

Lansford, Lewis, et al. Keynote: Advanced. National Geographic Learning, 2016.