Nonreactive measures in the social sciences
By: Eugene T. [i.e. J.] Webb ... [et al.].
Contributors: Webb, Eugene J., 1933-
Edition: 2nd ed.
Publisher: Houghton Mifflin
Published: 1981
Place of publication: Boston
Language: eng
Number of pages: 394
Subjects: Social sciences -- Research.
Other titles: Unobtrusive measures.
Description: x, 394 pages ; 22 cm
Notes: Bibliography: p. 331-378.
Previous ed.: Unobtrusive measures. 1966.
Includes index.