Hardy flowering shrubs : a list of the choicest varieties of shrubs arranged to produce a succession of bloom from early spring till frost - Greening Nursery Company.; Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Monroe, Mich, Greening Nursery Company, [1921], 1921)
https://www.biodiversitylibrary.org/bibliography/123877
Keywords: Catalogs|Michigan|Monroe|Nursery stock|Plants; Ornamental|Shrubs|