APA Edition Citation

Gass I.G.et.al. (1971). Understanding The Earth. Artemis.

Chicago Edition Citation

Gass I.G.et.al. Understanding The Earth. Sussex: Artemis, 1971.

MLA Edition Citation

Gass I.G.et.al. Understanding The Earth. Artemis, 1971.

Warning: These citations may not always be 100% accurate.