E.I. du Pont de Nemours & Company. (1915). How to organize, equip and conduct trapshooting clubs: Layout of grounds, installation of expert and automatic traps, the hand trap. E.I. du Pont de Nemours Powder Co.
Chicago-referens (17:e uppl.)E.I. du Pont de Nemours & Company. How to Organize, Equip and Conduct Trapshooting Clubs: Layout of Grounds, Installation of Expert and Automatic Traps, the Hand Trap. Wilmington, Del.: E.I. du Pont de Nemours Powder Co, 1915.
MLA-referens (8:e uppl.)E.I. du Pont de Nemours & Company. How to Organize, Equip and Conduct Trapshooting Clubs: Layout of Grounds, Installation of Expert and Automatic Traps, the Hand Trap. E.I. du Pont de Nemours Powder Co, 1915.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.