Obrazovatelnite promeni v srednoto uchilishte
Subtitle: (rezultati ot sot︠s︡ iologichesko izsledvane)
By: [avtor na publikat︠s︡ii︠a︡ta e dot︠s︡. Petŭr Balkanski.
Contributors: Balkanski, Petŭr.; Nat︠s︡ionalen statisticheski institut (Bulgaria)
Publisher: Statistichesko Izd-vo i Pechatnit︠s︡a
Published: 1994
Place of publication: Sofii︠a︡
Language: bul
Number of pages: 164
Notes: At head of title: Nat︠s︡ionalen statisticheski institut. Nauchnoizsledovatelski nat︠s︡ionalen t︠s︡entŭr po obrazovanie i nauka.

Table of contents and summary in English.