Barnes, D., Forster, C. F., & Hrudey, S. E. (1984). Petroleum and organic chemicals industries. Pitman Advanced Pub. Program.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)Barnes, D., C F. Forster, و S E. Hrudey. Petroleum and Organic Chemicals Industries. Boston: Pitman Advanced Pub. Program, 1984.
توثيق جمعية اللغة المعاصرة MLA (الإصدار التاسع)Barnes, D., et al. Petroleum and Organic Chemicals Industries. Pitman Advanced Pub. Program, 1984.