Taĭny penzenskikh podzemeliĭ
By: Vladislav Samsonov
Edition: Izdanie vtoroe, ispravlennoe i dopolnennoe
Publisher: [publisher not identified]
Published: 2012
Place of publication: Penza
Language: rus
Number of pages: 138
ISBN-13: 9785990311817
Subjects: Labyrinths; Research; Caves; Monasteries; Antiquities
Notes: Includes bibliographical references (page 135).