Webb, E. (1966). Unobtrusive measures: Nonreactive research in the social sciences. Rand McNally College publ Co..
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Citação norma Chicago
Webb, Eugene. Unobtrusive Measures: Nonreactive Research in the Social Sciences. Chicago: Rand McNally College publ Co., 1966.
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Citação norma MLA
Webb, Eugene. Unobtrusive Measures: Nonreactive Research in the Social Sciences. Rand McNally College publ Co., 1966.
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Nota: a formatação da citação pode não corresponder 100% ao definido pela respectiva norma.