TY  - BOOK
AU  - Jeffers, John N. R.
TI  - An introduction to systems analysis; with ecological applications
T2  - A series of student texts in contemporary biology
U1  - 574.5 
PY  - 1978///
CY  - Baltimore, Md.,
PB  - University Park
KW  - Análisis de sistemas
KW  - Ecología
KW  - Modelos matemáticos
ER  -