Gaya APA
BOSSEL, Hartmut. (1986).
Ecological systems analysis .
Germany:
German Forndaion For Intertional Development (DSE).
Gaya Chicago
BOSSEL, Hartmut.
Ecological systems analysis.
Germany:
German Forndaion For Intertional Development (DSE),
1986.
Text.
Gaya MLA
BOSSEL, Hartmut.
Ecological systems analysis.
Germany:
German Forndaion For Intertional Development (DSE),
1986.
Text.
Gaya Turabian
BOSSEL, Hartmut.
Ecological systems analysis.
Germany:
German Forndaion For Intertional Development (DSE),
1986.
Print.