Pyke, S. W., & Agnew, N. M. (1991). The science game: An introduction to research in the social sciences (5th ed.). Prentice-Hall.
Chicago-viite (17. p.)Pyke, Sandra W., ja Niel McK Agnew. The Science Game: An Introduction to Research in the Social Sciences. 5th ed. Englewood Cliff, N.J: Prentice-Hall, 1991.
MLA-viite (9. p.)Pyke, Sandra W., ja Niel McK Agnew. The Science Game: An Introduction to Research in the Social Sciences. 5th ed. Prentice-Hall, 1991.
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