Dupont Handloaders Guide for Smokeless Powder 1971-72 - 24 Pages

Handloaders Digest, 5th Anniversary Edition by John T. Amber

1985 Handloaders Guide for Smokeless Powders DuPont (w6)

Reloaders' Guide Hercules Smokeless Powders 1989 Sporting Powder Catalog

MODERN RELOADING by Richard Lee c2001 & Handloaders Digest 17th edition & NRA

History of the E I Dupont De Nemours Powder Company

DU PONT HANDLOADER'S GUIDE for smokeless powder 1975 - 1976

Hercules Smokeless Powder Guide Vintage Handloading Reference