TY  - BOOK
AU  - Harcourt, GC.
AU  - Karmel, PH.
AU  - Wallace, RH.
TI  - Economic activity
AV  - HB171.H273 1967 
PY  - 1967///
CY  - London, UK.
PB  - Cambridge university press
KW  - Economics
N1  - Includes bibliographical references and index
ER  -