Berta Hummel

• Berta Hummel: catalogue raisonne 1927 - 1931
• Die Hummel
• Hummel
• Mein Hummel- Weihnachtsbuch
• The Hummel (Drawings By Berta Hummel with Light Verse) (Collector's Edition)
• The Hummel (Tr. from Ger)
• The Hummel Book
• The Hummel Book From the Life and Work of Berta Hummel, Poems and Preface By the Late Margarete Seemann