TY  - BOOK
AU  - Claus, Karen E.,
AU  - Claus, Karen E.;Claus, R. James.
ED  - 
ED  - 
ED  - 
ED  - 
TI  - : volume 2, sign evaluation 
SN  - 2
PY  - 1975///;copyright 1974.46
CY  - Cincinnati
PB  - Signs of the Times Pub. Co.
KW  - 
KW  - 2
KW  - 0
KW  - 6
KW  - 20
KW  - Traffic signs and signals.;Communication.;Visual perception
N1  - Includes bibliographies; v. 1. Perception of the message.-- v. 3. Design of the message; 5
ER  -