Lo zodiaco della vita: La polemica sull'astrologia dal Trecento al Cinquecento (Italian language edition).
Softcover, Roma-Bari: Editori Laterza, 1976. Very Good with No dust jacket as issued.
Softcover, Roma-Bari: Editori Laterza, 1976. Very Good with No dust jacket as issued.
Illustrated by Martha Diebboll. Softcover, Manchester, MI: Wilderness Adventure Books, 1999. Fine with No dust jacket as issued.
Softcover, Cambridge, Mass. MIT Press, 1991. Good with no dust jacket.
Softcover, Boulder, Colorado: Griffin Publishing, 1995. Good with no dust jacket.
Softcover, New York: American Agora Foundation, 2012. Very Good with no dust jacket.
Softcover, Holt, Michigan: Thunder Bay Press, 1998. Very Good with no dust jacket.
Softcover, Durham, N.C. Parapsychology Press, 2004. Very Good with No dust jacket as issued.
Softcover, Winston-Salem: Bandit Books, 2003. Very Good with no dust jacket.