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1Published 1996### CRL customization ### ?> ### Add publisher and desc details ### ?>Sofi︠i︡a : Universitet, 1996-v. : ill. ; 23 cm.
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2Published 1968### CRL customization ### ?> ### Add publisher and desc details ### ?>[Sofi︠i︡a : Redak︠t︡si︠i︡a], 1968-v. : ill.
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3Sofi︠i︡a : Niproruda,v. : ill. ; 21 cm.
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4Sofi︠i︡a : Institut,v. : ill. ; 29 cm.
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5Sofi︠i︡a : [s.n.],v. : ill. ; 28 cm.
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6Published 1956### CRL customization ### ?> ### Add publisher and desc details ### ?>Sofi︠i︡a : Nauka i izkustvo, 1956-1959.5 v. : ill.
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7Published 1964### CRL customization ### ?> ### Add publisher and desc details ### ?>[Sofi︠i︡a] : Komitet po tekhnicheski︠i︡a progres i Nauchno-tekhnicheski sŭ︠i︡uz v Bŭlgari︠i︡a, -1964.v. : ill.
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8Published 1975### CRL customization ### ?> ### Add publisher and desc details ### ?>Sofi︠i︡a : Izd-vo na Bŭlgarskata akademi︠i︡a na naukite, 1975-1991.32 v. : ill. ; 24 cm.
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9Sofi︠i︡a : [s.n.],v. : ill. ; 29 cm.
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10Sofiia, Tekhnika.ill. 23 cm.
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11Published 1985### CRL customization ### ?> ### Add publisher and desc details ### ?>Sofi︠i︡a : Izd-vo na Bŭlgarskata akademi︠i︡a na naukite, 1985-v. : ill. ; 24 cm.
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12[Sofii︠a︡?]illus. 22 cm.
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13Sofi︠i︡a : Ministerstvo na lekata promishlenost,v. : ill.
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14Sofii︠a︡ : Tekhnika.v. : ill.
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15Published 1966### CRL customization ### ?> ### Add publisher and desc details ### ?>Sofi︠i︡a : Dŭrzh. izd-vo "Tekhnika", 1966-v. : ill. ; 23 cm.
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16Sofii︠a︡ : Tekhnika.v. : ill. ; 22 cm.
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17Published 1974### CRL customization ### ?> ### Add publisher and desc details ### ?>Sofi︠i︡a : Tekhnika, -1974.v. : ill.
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18Sofia, Izdatelstvo na Bŭlgarska akademii︠a︡ na naukite.volumes illustrations 24 cm.
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19Sofi︠i︡a : [s.n.]v. : ill.
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20Published 1960### CRL customization ### ?> ### Add publisher and desc details ### ?>Sofi︠i︡a : Tekhnika, 1960-v. : ill.