Ulin, P. R., Robinson, E. T., & Tolley, E. E. (2005). Qualitative methods in public health: A field guide for applied research (1st edition.). Jossey-Bass.
Chicago-viite (17. p.)Ulin, Priscilla R., Elizabeth T. Robinson, ja Elizabeth E. Tolley. Qualitative Methods in Public Health: A Field Guide for Applied Research. 1st edition. San Francisco, CA: Jossey-Bass, 2005.
MLA-viite (8. p.)Ulin, Priscilla R., et al. Qualitative Methods in Public Health: A Field Guide for Applied Research. 1st edition. Jossey-Bass, 2005.
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