APA   Click to copy
Vowles, K. E., McCracken, L. M., McLeod, C., & Eccleston, C. (2008). The Chronic Pain Acceptance Questionnaire: confirmatory factor analysis and identification of patient subgroups. Pain, 140, 284–291.

Chicago/Turabian   Click to copy
Vowles, Kevin E, Lance M McCracken, Charlotte McLeod, and Christopher Eccleston. “The Chronic Pain Acceptance Questionnaire: Confirmatory Factor Analysis and Identification of Patient Subgroups.” Pain 140 (2008): 284–291.

MLA   Click to copy
Vowles, Kevin E., et al. “The Chronic Pain Acceptance Questionnaire: Confirmatory Factor Analysis and Identification of Patient Subgroups.” Pain, vol. 140, No longer published by Elsevier, 2008, pp. 284–91.

@article{vowles2008a,
  title = {The Chronic Pain Acceptance Questionnaire: confirmatory factor analysis and identification of patient subgroups},
  year = {2008},
  journal = {Pain},
  pages = {284--291},
  publisher = {No longer published by Elsevier},
  volume = {140},
  author = {Vowles, Kevin E and McCracken, Lance M and McLeod, Charlotte and Eccleston, Christopher}
}