TY  - BOOK
AU  - DUNCKEL Earl B.
AU  -  REED William K.
AU  -  WILSON Ian H.
TI  - The business environment of the seventies
U1  - "X9:75.1.N7, L0" 
PY  - 1970///
CY  - london
PB  - mcgraw-hill book company new york   
ER  -