APA Citation

Hölscher, E., Blanckertz, R., & Simons, A. (1935-1940). Anna Simons. Heintze & Blanckertz.

MLA Citation

Hölscher, Eberhard, Rudolf Blanckertz, and Anna Simons. Anna Simons. Heintze & Blanckertz, 1935-1940.

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