APA (7th ed.) Citation

John Hart. (2011). Deadly Radon in Montana? A Brief Note. SAGE Publishing.

Chicago Style (17th ed.) Citation

John Hart. Deadly Radon in Montana? A Brief Note. SAGE Publishing, 2011.

MLA (9th ed.) Citation

John Hart. Deadly Radon in Montana? A Brief Note. SAGE Publishing, 2011.

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