The seeder's digest : Long's 1943 spring garden book - J.D. Long Seed Company.; Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Boulder, Colorado, J.D. Long Seed Co, 1943, 1943)
https://www.biodiversitylibrary.org/bibliography/179668
Keywords: Boulder|Bulbs (Plants)|Catalogs|Colorado|Nursery stock|Plants; Ornamental|Seeds|Varieties|