Author: Penkov, L. & Krestov, K.
Title: Complex scientific Dobrudzka expedition 1954 / Kompleksna nauchna Dobrudzhanska Ekspeditsiya prez 1954 godina.
Description: Sofia., Akademia na Naukite., 1956. 25 x 18 cms, 283, ii pages, map, numerous illustration. Hcloth. In Bulgarian. Route along Tutrakan, Silistra, Kavarna, Stalin,Kolarovgrad.

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