Text ( visual ) : unmediated Small groups : studies in social interaction / edited by A. Paul Hare, Edgar F. Borgatta, Robert F. Bales. -- New York : A.A. Knopf , 1955. -- xv, 666 p. : ill. ; 24 cm. -- Bibliography: p. [579]-661 ; Includes bibliographies (at end of chapter) and index. -- (BA01334796) ; https://ci.nii.ac.jp/ncid/BA01334796 Author Heading(s): Hare, A. Paul (Alexander Paul) ; Borgatta, Edgar F. ; Bales, Robert Freed. -- Classification(s): LCC : HM291 ; DC : 301.15 ; NDC8 : 361.61. -- Subject Heading(s): LCSH : Social interaction ; LCSH : Small groups ; NDLSH : 少数者集団