Seeds of Creation and Disaster

Gregory R L , 1997 Mirrors in Mind (Oxford: Oxford University Press; London: Penguin, 1998)

Leichtman M , 1996 The Rorschach: A Developmental Perspective (Hillsdale, NJ: Analytic Press)

Rorschach H , 1921 “Psychodiagnostics: A diagnostic test based on perception” [in Hermann Rorschach Psychodiagnostics 2nd edition—translated by Paul Lamkau Bernard Kronenberg from the 10th German edition (Bern: Hans Huber, 1998); this includes Rorschach's only other work “The application of form interpretation test”, a detailed example first published post-humously in 1923]

Warren R M Gregory R L , 1958 “An auditory analogue of the visual reversible figure” American Journal of Psychology 71 612–613