TY  - BOOK
AU  - Lanners,Edi
AU  - Norden,Heinz
TI  - Illusions
SN  - 0500270929
PY  - 1977///
CY  - London
PB  - Thames and Hudson
KW  - Optical illusions
N1  - Translation and adaptation of: 'Illusionen'. Lucerne : C.J. Bucher, 1973
ER  -