APA Edition Citation

Krebs, R. E. (2007). Basics of earth science. Atlantic pub.

Chicago Edition Citation

Krebs, Robert E. Basics of Earth Science. New Delhi: Atlantic pub, 2007.

MLA Edition Citation

Krebs, Robert E. Basics of Earth Science. Atlantic pub, 2007.

Advarsel: Disse citationer er muligvist ikke 100% nøjagtige.