APA (7th ed.) Citation
Gass, I. G., Smith, P. J., & Wilson, R. C. L. (1971). Understanding the Earth: A Reader in the Earth Sciences. Artemis.
Chicago Style (17th ed.) Citation
Gass, Ian Graham, Peter John Smith, and Richard Christopher Lane Wilson. Understanding the Earth: A Reader in the Earth Sciences. Horsham: Artemis, 1971.
MLA (9th ed.) Citation
Gass, Ian Graham, et al. Understanding the Earth: A Reader in the Earth Sciences. Artemis, 1971.
Advarsel: Disse citationer er muligvist ikke 100% nøjagtige.