TY  - BOOK
AU  - Symposium on the Visual Problems of Colour (1957, Sept. 23-
TI  - Visual problems of colour
PY  - 1958///
CY  - HMSO
PB  - London
UR  - http://14.139.222.13:80/cgi-bin/koha/opac-detail.pl?biblionumber=3063
ER  -