APA   Click to copy
Morse, D. R., Armstrong, S., & Dey, A. K. (2000). The what, who, where, when, why and how of context-awareness. Human Factors in Computing Systems, 371–371.

Chicago/Turabian   Click to copy
Morse, David R., Stephen Armstrong, and Anind K. Dey. “The What, Who, Where, When, Why and How of Context-Awareness.” Human Factors in Computing Systems (February 31, 2000): 371–371.

MLA   Click to copy
Morse, David R., et al. “The What, Who, Where, When, Why and How of Context-Awareness.” Human Factors in Computing Systems, Feb. 2000, pp. 371–71.

@article{david2000a,
  title = {The what, who, where, when, why and how of context-awareness},
  year = {2000},
  month = feb,
  day = {31},
  journal = {Human Factors in Computing Systems},
  pages = {371-371},
  author = {Morse, David R. and Armstrong, Stephen and Dey, Anind K.},
  booktitle = {chi},
  month_numeric = {2}
}