TY  - BOOK
AU  - ALLEN R G D
TI  - Macro-economic theory:  A mathematical treatment
T2  - Wiley-Blackwell Companions to Geography
U1  - "X:72:(B), K7" 
PY  - 1967///
CY  - "London,"
PB  - "Macmillan,       "
N1  - Bibliography chapterwise
ER  -