APA (7th ed.) Citation

Fredericks. (2007). Natural gas. Greenhaven Press/Thomson Gale.

Chicago Style (17th ed.) Citation

Fredericks. Natural Gas. United States: Greenhaven Press/Thomson Gale, 2007.

MLA (9th ed.) Citation

Fredericks. Natural Gas. Greenhaven Press/Thomson Gale, 2007.

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