1989 64 p., 27 figs, 3 enclosures, frontispiece, paperbound.
1998 viii, 479 p., num. figs, 1 large col. folded map, hardbound. Includes a copy of a letter written by Roberto Dall'Agnol to Dr. D.R. de Vletter (one of the authors), and a copy of a newspaper cutting on the book.