Epperson, A. Ralph. The unseen hand : an introduction to the conspiratorial view of history / by A. Ralph Epperson. - Tucson, Ariz. : Publius Press, copyright 1985. - [2], 488 stron : ilustracje ; 21 cm. Bibliografia na stronach 466-472. Indeks. ISBN: 0961413506 Subjects--Topical Terms: Spiski.Spiski.Spiski--historia.Spiski--Stany Zjednoczone. LC Class. No.: E183 / .E66 1985