توثيق جمعية علم النفس الأمريكية APA (الطبعة السابعة)

Gaston, P. L. (2010). The challenge of Bologna: What United States higher education has to learn from Europe, and why it matters that we learn it. Stylus.

توثيق أسلوب شيكاغو (الطبعة السابعة عشر)

Gaston, Paul L. The Challenge of Bologna: What United States Higher Education Has to Learn from Europe, and Why It Matters That We Learn It. Sterling, Va.: Stylus, 2010.

توثيق جمعية اللغة المعاصرة MLA (الإصدار التاسع)

Gaston, Paul L. The Challenge of Bologna: What United States Higher Education Has to Learn from Europe, and Why It Matters That We Learn It. Stylus, 2010.