Oskamp, S. (1991). Attitudes and opinions (2nd ed.). Prentice Hall.
Chicago Style aipamenaOskamp, Stuart. Attitudes and Opinions. 2nd ed. Englewood Cliffs, N.J: Prentice Hall, 1991.
MLA aipamenaOskamp, Stuart. Attitudes and Opinions. 2nd ed. Prentice Hall, 1991.
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