Tohutoro APA (7th ed.)
Webb, E. T., Campbell, D. T., Schwartz, R. D., Sechrest, L., & Grove, J. B. (1981). Nonreactive measures in the social sciences (2nd ed.). Houghton Mifflin.
Tohutoru Kātū Chicago (17th ed.)
Webb, Eugene T., Donald T. Campbell, Richard D. Schwartz, Lee Sechrest, me Janet Belew Grove. Nonreactive Measures in the Social Sciences. 2nd ed. London: Houghton Mifflin, 1981.
Tohutoro MLA (9th ed.)
Webb, Eugene T., et al. Nonreactive Measures in the Social Sciences. 2nd ed. Houghton Mifflin, 1981.
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