Philadelphia, A. C. H. S. o. Printed memo, "Gun Control, 1844" From: American Catholic Historical Society, [n.d.].
Chicago-viite (17. p.)Philadelphia, American Catholic Historical Society of. Printed Memo, "Gun Control, 1844" From: American Catholic Historical Society, [n.d.].
MLA-viite (8. p.)Philadelphia, American Catholic Historical Society of. Printed Memo, "Gun Control, 1844" From: American Catholic Historical Society, [n.d.].
Varoitus: Nämä viitteet eivät aina ole täysin luotettavia.