APA Edition Citation

Gass, I. e. (1972). Understanding The Earth. Artemis.

Chicago Edition Citation

Gass, I.G. et.al. Understanding The Earth. Sussex: Artemis, 1972.

MLA Edition Citation

Gass, I.G. et.al. Understanding The Earth. Artemis, 1972.

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