-
By: Humphrey Nurseries. - Backes, H. J. - H.J. Backes (Firm) - Henry G. Gilbert Nursery and Seed Trade Catalog Collection.Edition:Publication info: Humphrey, Neb, H.J. Backes, [1912]Volume: 1912Series:Holding Institution: U.S. Department of Agriculture, National Agricultural LibrarySubjects:BHL Collections: Seed & Nursery Catalogs