1983 One volume in two. 1127 p., 219 full colour plates, 370 plain plates, 20 portraits, paperbound. Covers of part 1 discoloured.Basic monograph on a subgroup of palaearctic Pieridae. Profusely illustrated. Also including the portraits of several "Pierologists". Printed in only 1000 copies. As new.
2001 Keltern, Goecke & Evers, 2001 : in-4°, broché 37 p., 64 figures in-texte, traces de plis sur les 3 premiers feuillets. Etat neuf !
2000 12 p., 28 planches couleurs hors-texte, petit folio, broché. Keltern, Goecke & Evers. Excellente monographie ! Très bon état.