एपीए उद्धरण

Ries A I & Trout, J. (1993). Twenty two immutable laws of marketing.

शिकागो स्टाइल उद्धरण

Ries A I और Jack Trout. Twenty Two Immutable Laws of Marketing. :, 1993.

एमएलए उद्धरण

Ries A I और Jack Trout. Twenty Two Immutable Laws of Marketing. 1993.