Rabotnicheskata klasa v etapa na izgrazhdane na razvitoto sot͡s︡ialistichesko obshtestvo.
Subtitle: [Izsledvane]
Contributors: Ivanov, Vasil, 1923-
Publisher: Profizdat
Published: 1973
Place of publication: [Sofii͡a︡]
Language: bul
Number of pages: 384
Subjects: Labor and laboring classes -- Bulgaria.
Notes: Includes bibliographical references.
By V. Ivanov and others.