"Landeskunde." . . "Inscriptions et voyages Balkans." . . "Europa" . . "Sociale geografie." . . "Europe, Eastern Europe" . . "Economic history." . . . . . "Eastern Europe : a geography of the Comecon [Council for mutual economic assistance] countries" . . "Eastern Europe : a geography of the Comecon Countries" . . . . . . . . "Eastern Europe a geography of the Comecon countries"@en . "Eastern Europe : a geography of the Comecon countries"@en . "Eastern Europe : a geography of the Comecon countries" . . "Eastern Europe: a geography of the COMECON countries" . . . . . "Eastern Europe : a geography of the COMECON countries"@en . "Eastern europe : a geography of the comecon countries" . . . . . . . . . . . . . . . . . . "Eastern Europe : A geography of the Comecon countries" . . . . . . "Eastern Europe : a Geography of the Comecon Countries" . . . . . "Eastern Europe a geography of the COMECON countries"@en . . . . . . . "Comecon." . . "Europe" . . "Osteuropa." . . . . "Europe, Eastern." . . "Europe, Eastern" . "Europe orientale." . . "Europe de l'Est." . . "Soviet ėkonomicheskoĭ vzaimopomoshchi." . . "Consejo de Ayuda Mutua Económica (Moscú, U.R.S.S.)" . . "COMECON (Organisme)" . . "Oost-Europa." . .