Holland bulbs for a lovelier spring - Danish Seed Company (Minneapolis, Minn.); Henry G. Gilbert Nursery; Seed Trade Catalog Collection. ([Minneapolis, Minnesota], [Danish Seed Company], [1953], 1953)
https://www.biodiversitylibrary.org/bibliography/197218
Keywords: Bulbs (Plants)|Flower gardening|Minneapolis|Minnesota|Nurseries (Horticulture)|Varieties|