TY  - BOOK
AU  - Shepard,Roger N.
TI  - Mind sights: original visual illusions, ambiguities, and other anomalies, with a commentary on the play of mind in perception and art
SN  - 0716721341
AV  - QP495 .S47 1990
U1  - 152.14/8 20
PY  - 1990///
CY  - New York
PB  - W.H. Freeman and Co.
KW  - Optical illusions
KW  - Local
KW  - Visual perception
N1  - Includes bibliographical references (p. [215]-221) and index
ER  -