Perkie plants - Ivy Hill Forest,; Day, Maurice Ellicott; Tunis, Edwin; Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Cockeysville, Maryland, Ivy Hill Forest, [1959?], 1959)
https://www.biodiversitylibrary.org/bibliography/209351
Keywords: Catalogs|Cockeysville|Maryland|Nursery stock|Plants; Ornamental|