Gray, D. E. (2013). Doing research in the real world (3rd edition.). Sage Publications.
Chicago-viite (17. p.)Gray, David E. Doing Research in the Real World. 3rd edition. Thousand Oaks, CA: Sage Publications, 2013.
MLA-viite (8. p.)Gray, David E. Doing Research in the Real World. 3rd edition. Sage Publications, 2013.
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