TY - CHAP T1 - “Exploring Individual Differences among Spanish Heritage Learners: Implications for TA Training and Program Development.” T2 - Individual Differences, L2 Development & Language Program Administration: From Theory to Application Y1 - 2013 A1 - Parra Velasco, M.L. ED - Cristina Sanz ED - Béatriz Lado JF - Individual Differences, L2 Development & Language Program Administration: From Theory to Application PB - Cengage CY - Boston ER -