TY  - BOOK
AU  - Dreyfuss,Henry
TI  - Symbol sourcebook: an authoritative guide to international graphic symbols 
SN  - 0070178372
U1  - 704.946 
PY  - 1972///
CY  - New York
PB  - McGraw-Hill Book Compancy
KW  - Signs and symbols
N1  - Bibliography: p. 252-269
N2  - This book is an authoritative guide to international graphic symbols
ER  -