1993 · Sofia
by Beleva, Iskar Spasova, et alia, authors
Sofia: Ivan D. Danov" Publishing House, 1993. 199p., illustrated with tables and charts, softbound in 8x5.5 inch decorated wraps. Paperstock faintly toned, a clean sound unmarked copy with no signs of handling and only the toning of age, a very good copy. (Inventory #: 238144)