The Collected Works of L. S. Vygotsky. Volume 1: Problems of General Psychology. Including the Volume Thinking and Speech L. S. Vygotsky Robert W. Rieber Aaron S. Carton Norris Minick The Collected Works of L. S. Vygotsky. Volume 2: The Fundamentals of Defectology (Abnormal Psychology and Learning Disabilities) L. S. Vygotsky Robert W. Rieber Aaron S. Carton Jane E. Knox Carol B. Stevens Understanding Vygotsky: A Quest for Synthesis Rene van der Veer Jaan Valsiner