TY  - BOOK
AU  - Veit,Clairice T.
ED  - Research and Development Corporation, 
TI  - Can people compare stimulus information by a ratio operation?
T2  - The Rand paper series
PY  - 1991///
CY  - Santa Monica, California
PB  - Rand Corporation
KW  - Mensuration
KW  - Physical measurements
N1  - Includes bibliographical references: pages 21-23
ER  -