Demografski osnovi na sot͡s︡ialnoto osiguri͡a︡vane
By: Petŭr Penkov.
Edition: 2., perer. dop. izd.
Publisher: Nauchnoizsledovatelski in-t po profsŭi͡u︡zni problemi "G. Dimitrov" pri T͡S︡S na BPS
Published: 1987
Place of publication: Sofii͡a︡
Language: bul
Number of pages: 187
Subjects: Demography -- Methodology.; Vital statistics.; Social security.
Notes: Bibliography: p. 183-184.
At head of title: Nauchnoizsledovatelski institut po profsŭi͡u︡zni problemi "G. Dimitrov" pri T͡S︡S na BPS. Vissha shkola sleddiplomna kvalifikat͡s︡ii͡a︡.