2003 318 p., 454 figs, paperbound. Zoologische Verhandelingen. New copy.
2003. 318 p., 454 figs, paperbound. Zoologische Verhandelingen. Library stamp. Good second hand copy.
1997 185 p., 706 figures, paperbound. Zoologische Verhandelingen. Library stamp and numbers written on front cover.