Catalog of plants of the K.I.Ber garden institution No. 146
Date: 1915 – 1916
Place: Kremenchuk, K.I.Ber garden establishment
Source: online auction “Bag”
Catalog of plants of the K.I. Ber garden institution, 1916, photo #2884
Джерело: інтернет-аукціон "Мішок"