Henerson, M. E., Morris, L. L., & Fitz-Gibbon, C. T. (1987). How to measure attitudes (2nd ed.). Sage Publications.
Chicago-viite (17. p.)Henerson, Marlene E., Lynn Lyons Morris, ja Carol Taylor Fitz-Gibbon. How to Measure Attitudes. 2nd ed. Newbury Park, Calif.: Sage Publications, 1987.
MLA-viite (8. p.)Henerson, Marlene E., et al. How to Measure Attitudes. 2nd ed. Sage Publications, 1987.
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