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.
International Congress of Soil Science . ru en st International Congress of Soil Science Washington DC Marbut and Glinka on excursion Missouri State Historical Society International Soil Science Society other versions PDold Konstantin Glinka in Missouri
Page 2023 Free-images.com. All images are Public Domain