Gaya APA
Communications towers: Terres de communication. (1992).
Barcelona:
Edisiones Atrium SA..
Gaya Chicago
Communications towers: Terres de communication.
text.
Barcelona:
Edisiones Atrium SA.,
1992.
.
Gaya MLA
Communications towers: Terres de communication.
text.
Barcelona:
Edisiones Atrium SA.,
1992.
.
Gaya Turabian
Communications towers: Terres de communication.
Barcelona:
Edisiones Atrium SA.,
1992.
.