Russell-Heckle's quantity price list : January 1, 1952 number 200 - Russell-Heckle Seed Co.; Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Memphis, Tennessee, Russell-Heckle Seed Company, January 1, 1952, 1952)
https://www.biodiversitylibrary.org/bibliography/196074
Keywords: Field crops|Insecticides|Memphis|Prices|Seed industry and trade|Seeds|Tennessee|