توثيق جمعية علم النفس الأمريكية APA (الطبعة السابعة)

FISHER, J. (2018). THIS IS A VOICE: 99 exercises to train, project and harness the power of your voice. WELLCOME COLLECTION.

توثيق أسلوب شيكاغو (الطبعة السابعة عشر)

FISHER, JEREMY. THIS IS A VOICE: 99 Exercises to Train, Project and Harness the Power of Your Voice. [Place of publication not identified]: WELLCOME COLLECTION, 2018.

توثيق جمعية اللغة المعاصرة MLA (الإصدار التاسع)

FISHER, JEREMY. THIS IS A VOICE: 99 Exercises to Train, Project and Harness the Power of Your Voice. WELLCOME COLLECTION, 2018.