This image was acquired from
wikimedia. It was marked as Public Domain or CC0 and is free to use. To verify, go to the source and check the information there.
Walterblumenfeld. Walter Blumenfeld german peruvian experimental psychologist Fotografa antigua Universidad Nacional Mayor de San Marcos Universidad Nacional Mayor de San Marcos PDold PDold Psychologists from Germany Universidad Nacional Mayor de San Marcos thcentury photographs of Peru
Page 2023 Free-images.com. All images are Public Domain