APA (7th ed.) Citation

Vogt, G. L. (2007). The Hydrosphere: Agent of change. Twenty-First Century Books.

Chicago Style (17th ed.) Citation

Vogt, Gregory L. The Hydrosphere: Agent of Change. Minneapolis: Twenty-First Century Books, 2007.

MLA (9th ed.) Citation

Vogt, Gregory L. The Hydrosphere: Agent of Change. Twenty-First Century Books, 2007.