APA (7th ed.) Citation

Howell, D. (1993). The Future of energy gases: U.S. Geological Survey Professional Paper 1570. Department of Interior.

Chicago Style (17th ed.) Citation

Howell, David. The Future of Energy Gases: U.S. Geological Survey Professional Paper 1570. U.S.A: Department of Interior, 1993.

MLA (9th ed.) Citation

Howell, David. The Future of Energy Gases: U.S. Geological Survey Professional Paper 1570. Department of Interior, 1993.

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