APA (7th ed.) Citation

Happel, G. (2003). "Ein innovativer Schöpfergeist": Alexander Behm: Erfinder des Echolots.

Chicago Style (17th ed.) Citation

Happel, Günter. "Ein Innovativer Schöpfergeist": Alexander Behm: Erfinder Des Echolots. 2003.

MLA (9th ed.) Citation

Happel, Günter. "Ein Innovativer Schöpfergeist": Alexander Behm: Erfinder Des Echolots. 2003.

Warning: These citations may not always be 100% accurate.