TY  - BOOK
AU  - Wade,Nicholas J.
AU  - Swanston,Michael
TI  - Visual perception : an introduction
SN  - 0415010438
U1  - 152.14 
PY  - 1991///
CY  - London
PB  - Routledge
KW  - Visual perception
KW  - Visual discrimination
N1  - Includes index; Bibliography: p.199-202
ER  -