Bulgaria's past / Vera Moutafchieva [and] Nikolai Todorov ; translated by Georgina Yates Mutafchieva, Vera. Todorov, Nikolai, 1921-2004. jt. aut. Yates, Georgina tr. DR67 .M8413 949.9 MOB Sofia : Sofia-Press, 1969. 1969. 1969 Text 167 p. ; eng engund Bulgaria History.