Dobrovolnii͡a︡t dopŭlnitelen trud
Subtitle: sot͡s︡ialni i ikonomicheski problemi
By: Ivan Nonchev, Docho Kirov.
Contributors: Kirov, Docho.
Publisher: Profizdat
Published: 1987
Place of publication: Sofii͡a︡
Language: bul
Number of pages: 130
Subjects: Voluntarism -- Bulgaria.; Supplementary employment -- Bulgaria.
Notes: Includes bibliographical references.