Koster Company, Inc. : September 1, 1938 : wholesale nurserymen - Koster Company, Inc.; Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Bridgeton, N.J, Koster Company, Inc, 1938, 1938)
https://www.biodiversitylibrary.org/bibliography/170232
Keywords: Bridgeton|New Jersey|Nursery stock|Plants; Ornamental|Prices|Shrubs|