Sot︠s︡ialnite obedinenii︠a︡
By: Valentina Milenkova
Publisher: Universitetsko Izdatelstvo Neofit Rilski
Published: 2021
Place of publication: Blagoevgrad
Language: bul
Number of pages: 188
ISBN-13: 9789540002552
Notes: Includes bibliographical references.

In Bulgarian; summary in English.