Specific reading disability : advances in theory and method - International symposium on reading disorders August 1968 Amsterdam; Bakker, Dirk J. (Dirk Jacobus), 1935-....; De Wit, Jan, 1928-2000 (Rotterdam : Rotterdam university press, 1970)
Based on an international symposium held in conjunction with the 16th international congress of applied psychology at the Paedological Institute, Research Department, Amsterdam, August 1968