Text ( visual ) : unmediated Meta-analysis in social research / Gene V. Glass, Barry McGaw, and Mary Lee Smith. -- Newbury Park : Sage Publications , c1981. -- 279 p. ; 23 cm. -- Bibliography: p. 257-270 ; Includes indexes. -- ISBN 0803916337 ; (BA18731586) ; https://ci.nii.ac.jp/ncid/BA18731586 Author Heading(s): Glass, Gene V. ; McGaw, Barry ; Smith, Mary Lee. -- Classification(s): LCC : H62 ; DC19 : 300/.72. -- Subject Heading(s): LCSH : Social sciences -- Research ; LCSH : Meta-analysis