Mental retardationCarl A. Larsson, American Association of Mental Retardati, Ruth A. Luckasson · First published 2002Open the Tome
Retardacion Mental: Definicion, Clasificacionk, Y Sistemas De ApoyoRuth A. Luckasson · First published 1992Open the Tome
Introduction to special educationDeborah Deutsch Smith, Ruth A. Luckasson · First published 1991Open the Tome
Transitions to adult life for people with mental retardationBarbara L. Ludlow, Ann P. Turnbull, Ruth Luckasson, Barbara Ludlow, Ruth A. Luckasson · First published 1988Open the Tome
