Quasi-experimentation
Subtitle: design & analysis issues for field settings /Thomas D. Cook, Donald T. Campbell.. --
Contributors: Campbell, Donald Thomas, 1916-1996
Publisher: Rand McNally College Pub. Co., c1979.
Published: 1979
Place of publication: Chicago
Language: eng
Number of pages: 405
Subjects: Social science research; Social sciences -- Field work
Notes: Includes index.  Bibliography: p. 387-396.