توثيق جمعية علم النفس الأمريكية APA (الطبعة السابعة)

Butts, B. (1991). Five centuries of drawing: Masterpieces from the Museum of Fine Arts, Leipzig; The Saint Louis Art Museum, February 2 - March 24, 1991 / Barbara Butts.

توثيق أسلوب شيكاغو (الطبعة السابعة عشر)

Butts, Barbara. Five Centuries of Drawing: Masterpieces from the Museum of Fine Arts, Leipzig; The Saint Louis Art Museum, February 2 - March 24, 1991 / Barbara Butts. Saint Louis, 1991.

توثيق جمعية اللغة المعاصرة MLA (الطبعة الثامنة)

Butts, Barbara. Five Centuries of Drawing: Masterpieces from the Museum of Fine Arts, Leipzig; The Saint Louis Art Museum, February 2 - March 24, 1991 / Barbara Butts. 1991.