توثيق جمعية علم النفس الأمريكية APA (الطبعة السابعة)

ebrary, Inc, Linguistic Bibliography and the Languages of the World, Janse, M., & Tol, S. (2003). Language death and language maintenance: Theoretical, practical, and descriptive approaches. J. Benjamins Pub..

توثيق أسلوب شيكاغو (الطبعة السابعة عشر)

ebrary, Inc, Linguistic Bibliography and the Languages of the World, Mark Janse, و Sijmen Tol. Language Death and Language Maintenance: Theoretical, Practical, and Descriptive Approaches. Amsterdam ; Philadelphia: J. Benjamins Pub., 2003.

توثيق جمعية اللغة المعاصرة MLA (الإصدار التاسع)

ebrary, Inc, et al. Language Death and Language Maintenance: Theoretical, Practical, and Descriptive Approaches. J. Benjamins Pub., 2003.