توثيق جمعية علم النفس الأمريكية APA (الطبعة السابعة)

Spath P. L., Dayton D. C., & National Renewable Energy Laboratory. Preliminary screening - technical and economic assessment of synthesis gas to fuels and chemicals with empha.

توثيق أسلوب شيكاغو (الطبعة السابعة عشر)

Spath P. L., Dayton D. C., و National Renewable Energy Laboratory. Preliminary Screening - Technical and Economic Assessment of Synthesis Gas to Fuels and Chemicals with Empha.

توثيق جمعية اللغة المعاصرة MLA (الإصدار التاسع)

Spath P. L., et al. Preliminary Screening - Technical and Economic Assessment of Synthesis Gas to Fuels and Chemicals with Empha.