APA   Click to copy
Lederer, S., Hong, J. I., Dey, A. K., & Landay, J. A. (2004). Personal privacy through understanding and action: five pitfalls for designers. Ubiquitous Computing, 8(6), 440–454.

Chicago/Turabian   Click to copy
Lederer, Scott, Jason I. Hong, Anind K. Dey, and James A. Landay. “Personal Privacy through Understanding and Action: Five Pitfalls for Designers.” Ubiquitous Computing 8, no. 6 (September 31, 2004): 440–454.

MLA   Click to copy
Lederer, Scott, et al. “Personal Privacy through Understanding and Action: Five Pitfalls for Designers.” Ubiquitous Computing, vol. 8, no. 6, Sept. 2004, pp. 440–54.

@article{scott2004a,
  title = {Personal privacy through understanding and action: five pitfalls for designers},
  year = {2004},
  month = sep,
  day = {31},
  issue = {6},
  journal = {Ubiquitous Computing},
  pages = {440-454},
  volume = {8},
  author = {Lederer, Scott and Hong, Jason I. and Dey, Anind K. and Landay, James A.},
  booktitle = {ubicomp},
  month_numeric = {9}
}