Κανονική προβολή Προβολή MARC Προβολή ISBD

Unobtrusive measures / Eugene J. Webb ... [et al.]. - rev. ed. - Thousand Oaks, Calif. : Sage Publications, 2000. - xix, 220 p. ; 24 cm. - Sage classics series ; 2 .

Rev. ed. of: Nonreactive measures in the social sciences. 2nd ed. 1981.

Includes bibliographical references (p. 189-209) and index.

ISBN: 0761920129

Subjects--Topical Terms:
Social sciences--Research

Dewey Class. No.: 300.72