APA (7th ed.) Citation

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

Chicago Style (17th ed.) Citation

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

MLA (9th ed.) Citation

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