An introduction to the theory and practice of psychologyLlewelyn Wynn Jones · First published 1934Open the Tome
Phases of European psychologyJames Drever, Robert Henry Thouless, Wolfgang Köhler, Llewelyn Wynn-Jones, F. M. Roels, Francis Aveling, University of Michigan · First published 1929Open the Tome
Untersuchungen über die Reizschwelle für Farbensättigung bei KindernLlewelyn Wynn Jones · First published 1911Open the Tome
