TY  - GEN
AU  - Vollenweider,
TI  - Input-output models with special reference to the phosphorus loading concept in limnology [Texto fotocopiado]
PY  - 0000///[s.n.]
CY  - [S.l.]
PB  - 1975
KW  - 322 v
KW  - D 62
ER  -