Lester, J. D. (1987). Writing research papers: A complete guide (5th ed.). Scott, Foresman.
Chicago-viite (17. p.)Lester, James D. Writing Research Papers: A Complete Guide. 5th ed. Glenview, Illinois: Scott, Foresman, 1987.
MLA-viite (9. p.)Lester, James D. Writing Research Papers: A Complete Guide. 5th ed. Scott, Foresman, 1987.
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