Tekhniko-ikonomicheski izmerenii͡a na intelektualizat͡sii͡ata
By: Bozhidar B. Kat͡sarov, Ivan P. Tenev.
Edition: 1. izd.
Publisher: Dŭrzh. izd-vo "Tekhnika"
Published: 1983
Place of publication: Sofii͡a
Language: bul
Number of pages: 155