Sreshti s kometite
By: Nikola Nikolov, Valeri Golev, Venelina Racheva.
Contributors: Golev, Valeri.; Racheva, Venelina.
Edition: 1. izd.
Publisher: Nauka i izkustvo
Published: 1986
Place of publication: Sofii͡a︡
Language: bul
Number of pages: 251
Subjects: Comets.