Hale-Bopp: La Cometa del Secolo. The Comet of the Century.
Hardcover, Cortina, Italy: Edizioni La Cooperativa di Cortina, 1997. Very Good with no dust jacket.
Hardcover, Cortina, Italy: Edizioni La Cooperativa di Cortina, 1997. Very Good with no dust jacket.
Softcover, Udine, Italy: Forum, Editrice Universitaria Udinese srl, 2010. Very Good with no dust jacket.