توثيق جمعية علم النفس الأمريكية APA (الطبعة السابعة)

Birg, H., Fritsch, B., & Hösle, V. (1995). Population, Environment and Sustainable Livelihood: Proceedings of Symposion V, Session 2 of the World Congress of Sociology, held at the University of Bielefeld, July 18-23, 1994.

توثيق أسلوب شيكاغو (الطبعة السابعة عشر)

Birg, Herwig, Bruno Fritsch, و Vittorio Hösle. Population, Environment and Sustainable Livelihood: Proceedings of Symposion V, Session 2 of the World Congress of Sociology, Held at the University of Bielefeld, July 18-23, 1994. Bielefeld, 1995.

توثيق جمعية اللغة المعاصرة MLA (الطبعة الثامنة)

Birg, Herwig, et al. Population, Environment and Sustainable Livelihood: Proceedings of Symposion V, Session 2 of the World Congress of Sociology, Held at the University of Bielefeld, July 18-23, 1994. 1995.