TY  - BOOK
AU  - Margalef,Ramón
TI  - Perspectives in ecological theory / 
SN  - 226505057
PY  - 1968///.
CY  - Chicago: 
PB  - The University of Chicago Press, 
KW  - ECOLOGIA
KW  - ECOSISTEMA
KW  - SUCESION ECOLOGICA
KW  - EVOLUCION
ER  -