Butterflies of Bulgaria. Part 1. Papilionidae & Pieridae. Part 2. Nymphalidae: Libytheinae & Satyrinae. Volume 3. Nymphalidae: Apaturinae & Nymphalinae.

1992-1995 91, 127, 159 p., 9, 80 figures, 16, 32 coloured plates, 16, 16 distribution maps, paperbound (parts 1-2) & hardbound (dust jacket). In English. Library stamps and removed sticker mark on dust jacket, else good copy.