Beldt's Aquarium, 1935 : supplement [to the 1934 catalog] - Beldt's Aquarium.; Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (St. Louis, Mo, Beldt's Aquarium, 1935, 1935)
https://www.biodiversitylibrary.org/bibliography/162622
Keywords: Aquariums|Catalogs|Equipment and supplies|Water gardens|