TY  - BOOK
AU  - Thorndyke,Perry W.
AU  - Goldin,Sarah E.
ED  - Research and Development Corporation, 
ED  - United States.
TI  - Ability differences and cognitive mapping skill
T2  - a A Rand Note
PY  - 1981///
CY  - California
PB  - Rand Corporation
KW  - Geographical perception
KW  - Geography
KW  - Study and teaching
KW  - Evaluation.
N1  - Includes bibliographical references (page 53-55)
ER  -