Pyke, S. W., & Agnew, N. M. (1991). The science game: An introduction to research in the social sciences (5th ed.). Prentice-Hall.
Cita Chicago (17th ed.)Pyke, Sandra W., i Niel McK Agnew. The Science Game: An Introduction to Research in the Social Sciences. 5th ed. Englewood Cliff, N.J: Prentice-Hall, 1991.
Cita MLA (9th ed.)Pyke, Sandra W., i Niel McK Agnew. The Science Game: An Introduction to Research in the Social Sciences. 5th ed. Prentice-Hall, 1991.
Atenció: Aquestes cites poden no estar 100% correctes.