TY  - BOOK
AU  - Boulding Kenneth E
AU  - Boulding Elise
AU  - Burgess Guy M
TI  - Social system of the planet earth
SN  - 0201002078
U1  - 300 
PY  - 1977///
CY  - Massachutes
PB  - Addison-Wesley
KW  - Social sciences
ER  -