12 besedi
Subtitle: predelno kratko za dialektikata na sot͡s︡ialno-ikonomicheskii͡a︡ i nauchno-tekhnicheskii͡a︡ progres
By: Krŭstʹo Ivanov.
Edition: 1. izd.
Publisher: Nar. mladezh
Published: 1988
Place of publication: Sofii͡a︡
Language: bul
Number of pages: 99
Subjects: Progress.; Revolutions.
Other titles: Dvanadeset besedi.
Notes: Includes bibliographical references.