TY  - BOOK
AU  - Emery,F.E.
AU  - Trist,E.L.
TI  - Towards a social ecology: contextual appreciation of the future in the present 
SN  - 0306305631 :
U1  - 301.3 
PY  - 1973///
CY  - London
PB  - Plenum Press
KW  - Social ecology
KW  - Urban ecology (Sociology)
KW  - Social history
KW  - 20th century
N1  - Includes bibliographical references and index
ER  -