APA (7th ed.) Citation

Leemann, .. (1933). With signature. Text under drawing: "Vielen herzlichen Dank!".

Chicago Style (17th ed.) Citation

Leemann, ... With Signature. Text Under Drawing: "Vielen Herzlichen Dank!". 1933.

MLA (8th ed.) Citation

Leemann, ... With Signature. Text Under Drawing: "Vielen Herzlichen Dank!". 1933.

Warning: These citations may not always be 100% accurate.