TY  - BOOK
AU  -  Hoyle, Ken
AU  - Whitehead, Geoffrey 
TI  - Business economics made simpleKen Hoyle; Geoffrey Whitehead: Ecosystem viability, natural resources
SN  - 491028423
PY  - 1980///
CY  - London
PB  - Allen , 
KW  - Economics; Microeconomics.
N1  - Includes index
ER  -