APA (7th ed.) Citation

Allaby, M. (1993). Earth, our planet and its resources. Facts on File.

Chicago Style (17th ed.) Citation

Allaby, Michael. Earth, Our Planet and Its Resources. New York: Facts on File, 1993.

MLA (9th ed.) Citation

Allaby, Michael. Earth, Our Planet and Its Resources. Facts on File, 1993.

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