Ippolito di Roma

Refutatio Omnium Haeresium

George Francis Legge, Philosophumena Or the Refutation of All Heresies, Vol. 1, The MacMillan Company, New York 1921.

Eduard Conzemius

Hocus-Pocus to keep the people in fear

Ethnographical survey of the Miskito and Sumu Indians of Honduras and Nicaragua, Government Printing Office, Washington 1932, p. 125.

Italo Ghersi

Il cantiniere infedele

Italo Ghersi, Matematica dilettevole e curiosa, Hoepli, Milano 1972.

Marcello Truzzi

Sherlock Holmes: Applied Social Psychologist

Marcello Truzzi, The Humanities as Sociology: An Introductory Reader, Charles E. Merrill Publishing Company, Columbus 1973, Cap. 7, pp. 93-126.

Calcolatori domestici

Carlo Sintini, Quiz e giochi matematici, Longanesi, Roma 1979, pp. 27-32.

Salvatore Cimò

Mesmerismo

Meraviglie cartomagiche - Carte truccate, Vol. 1, Carmelo Piccoli, Milano 1987, p. 162.

Douglas J. Lanska e Joseph T. Lanska

Franz Anton Mesmer and the Rise and Fall of Animal Magnetism: Dramatic Cures, Controversy, and Ultimately a Triumph for the Scientific Method

Harry Whitaker, Brain, Mind and Medicine: Essays in Eighteenth-Century Neuroscience, Springer, London 2007, pp. 301-320.

Renko Geffarth

The Masonic Necromancer: shifting identities in the lives of Johann Georg Schrepfer

Olav Hammer, Polemical Encounters: Esoteric Discourse and Its Others 2007.

Pietro Braido

Difensore della fede e della grazia (Don Giovanni Bosco e don Francesco Grignaschi)

Pietro Braido, Don Bosco prete dei giovani nel secolo delle libertà, Vol. 1, Libreria Ateneo Salesiano, Roma 2009, pp. 268-269.