Rosenthal, RobertRosnow, Ralph L.2018-03-152008Rosenthal, Robert, and Ralph L. Rosnow. 2008. Essentials of Behavioral Research: Methods and Data Analysis. Third Edition. New York: McGraw-Hill.http://nrs.harvard.edu/urn-3:HUL.InstRepos:34945148en-USMonograph or Book2018-03-15