APA (7th ed.) Citation

Murphy, D., Harty, D., Barton, J., Delaney, K., & Archives, T. P. S. U. C. Stephen Bellis. http://ubicomp.org/ubicomp2004/adjunct/posters/bellis.pdf.

Chicago Style (17th ed.) Citation

Murphy, David, David Harty, John Barton, Kieran Delaney, and The Pennsylvania State University CiteSeerX Archives. "Stephen Bellis." Http://ubicomp.org/ubicomp2004/adjunct/posters/bellis.pdf .

MLA (9th ed.) Citation

Murphy, David, et al. "Stephen Bellis." Http://ubicomp.org/ubicomp2004/adjunct/posters/bellis.pdf, .