एपीए उद्धरण

Hatherall, D. (2007). Colloquial German: The complete course for beginners. London: Routledge.

शिकागो स्टाइल उद्धरण

Hatherall, Dietlinde. Colloquial German: The Complete Course for Beginners. London: Routledge, 2007.

एमएलए उद्धरण

Hatherall, Dietlinde. Colloquial German: The Complete Course for Beginners. London: Routledge, 2007.