TY  - BOOK
AU  - Davidson, Catherine.
TI  - The directory of signs & signals: a guide to signs, codes and signals from across the world
SN  - 1840137142
PY  - 2004///
CY  - Hoo, Rochester
PB  - Grange
KW  - Sign language
KW  - Signs and symbols
KW  - Visual communication
N1  - Includes index
ER  -