Cita APA (7a ed.)

Johnson, M., Purpur, G., & Abbott, L. T. (2009). Learning to Provide 3D Virtual Reference: A Library Science Assignment.

Cita Chicago Style (17a ed.)

Johnson, Megan, Geraldine Purpur, y Lisa T. Abbott. Learning to Provide 3D Virtual Reference: A Library Science Assignment. 2009.

Cita MLA (9a ed.)

Johnson, Megan, et al. Learning to Provide 3D Virtual Reference: A Library Science Assignment. 2009.