एपीए उद्धरण

Gabler, R. E. Blue skies: College edition. Victoria, Australia: Brooks/Cole.

शिकागो स्टाइल उद्धरण

Gabler, Robert E. Blue Skies: College Edition. Victoria, Australia: Brooks/Cole.

एमएलए उद्धरण

Gabler, Robert E. Blue Skies: College Edition. Victoria, Australia: Brooks/Cole.