Frohlich, B. (2003). Metal architecture design and construction. Boston: Publisers for Architecture.
Chicago Style aipamenaFrohlich, Burkhard. Metal Architecture Design and Construction. Boston: Publisers for Architecture, 2003.
MLA aipamenaFrohlich, Burkhard. Metal Architecture Design and Construction. Boston: Publisers for Architecture, 2003.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.