v. 1. Theory and method / edited by John W. Berry, Ype H. Poortinga, Janak Pandey -- volume 2. Basic processes and human development / edited by John W. Berry, Pierre R. Dasen, T.S. Saraswathi -- volume 3. Social behavior and applications / edited by John. W. Berry, Marshall H. Segall, Cigdem Kagitçibasi