توثيق جمعية علم النفس الأمريكية APA (الطبعة السابعة)

Czerny, C. (1993). Czerny-Germer selected paino studies: 50 short studies selected from Opp. 139, 261, 599 and 821 32 studies selected from Opp. 335, 636, 829 and 849. Alfred Publishing.

توثيق أسلوب شيكاغو (الطبعة السابعة عشر)

Czerny, Carl. Czerny-Germer Selected Paino Studies: 50 Short Studies Selected from Opp. 139, 261, 599 and 821 32 Studies Selected from Opp. 335, 636, 829 and 849. Van Nuys, CA: Alfred Publishing, 1993.

توثيق جمعية اللغة المعاصرة MLA (الإصدار التاسع)

Czerny, Carl. Czerny-Germer Selected Paino Studies: 50 Short Studies Selected from Opp. 139, 261, 599 and 821 32 Studies Selected from Opp. 335, 636, 829 and 849. Alfred Publishing, 1993.