Fortieth annual catalog : Pioneer Seed House Nursery & Greenhouses of the northwest - Oscar H. Will & Co.; Pioneer Seed House.; Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Bismarck, N.D, Oscar H. Will & Co, 1923, 1923)
https://www.biodiversitylibrary.org/bibliography/129497
Keywords: Bismarck|Catalogs|Cereal grasses|Flowers|Fruit|North Dakota|Nursery stock|Plants; Ornamental|Seeds|Vegetables|