एपीए उद्धरण

Berlin: Presentation of a city. [s.l.]: [s.n.].

शिकागो स्टाइल उद्धरण

Berlin: Presentation of a City. [s.l.]: [s.n.].

एमएलए उद्धरण

Berlin: Presentation of a City. [s.l.]: [s.n.].