Montag, C. R. (2011). Was bleibt. Müller + Busmann.
Chicago Style (17th ed.) CitationMontag, Carl Richard. Was Bleibt. Wuppertal: Müller + Busmann, 2011.
MLA (9th ed.) CitationMontag, Carl Richard. Was Bleibt. Müller + Busmann, 2011.
Warning: These citations may not always be 100% accurate.