APA ציטוט

Simmons, I. (1991). Earth, Air and water: resources: And environment in the late 20th century. Edward Arnold.

Chicago Style (17th ed.) Citation

Simmons, I.G. Earth, Air and Water: Resources: And Environment in the Late 20th Century. London: Edward Arnold, 1991.

ציטוט MLA

Simmons, I.G. Earth, Air and Water: Resources: And Environment in the Late 20th Century. Edward Arnold, 1991.