TY  - BOOK
AU  - Gould Peter
AU  -  White Rodney
TI  - Mental maps
T2  - Pelican Geography and Environmental Studies. Ed by Peter Hall
U1  - U42, L4 
PY  - 1974///
CY  - Harmondsworth
PB  - Penguin Books         
KW  - Migration
N1  - Bibliography: P 193-97
ER  -