APA-referens (7:e uppl.)

LEVETE, S. (2010). GEOGRAPHY OUR WORLD: MOUNTAINS. S.CHAND PUBLISHING.

Chicago-referens (17:e uppl.)

LEVETE, SARAH. GEOGRAPHY OUR WORLD: MOUNTAINS. NEW DELHI: S.CHAND PUBLISHING, 2010.

MLA-referens (9:e uppl.)

LEVETE, SARAH. GEOGRAPHY OUR WORLD: MOUNTAINS. S.CHAND PUBLISHING, 2010.