Gaya APA
BEHRENS, W. (1991).
Manual for the preparation of industrial feasibility studies .
Vlenna:
UNIDO.
Gaya Chicago
BEHRENS, W.
Manual for the preparation of industrial feasibility studies.
Vlenna:
UNIDO,
1991.
Text.
Gaya MLA
BEHRENS, W.
Manual for the preparation of industrial feasibility studies.
Vlenna:
UNIDO,
1991.
Text.
Gaya Turabian
BEHRENS, W.
Manual for the preparation of industrial feasibility studies.
Vlenna:
UNIDO,
1991.
Print.