"Obres de referència." . . . . "Cataloghi per materie." . . "Reference books." . . "Ouvrages de référence." . . "Reference Books Bibliography." . . "Reference Books bibliography." . "Reference books Bibliography." . "Ouvrages de référence Bibliographie." . . "Baltimore (Stany Zjednoczone)" . . "Obras de referencia Bibliografías." . . "Reference books : A brief guide for students and other users of the library" . . . . . . . . . . . . "Bibliografies analítiques" . . . . . . . . . . . "Reference books; a brief guide for students and other users of the library"@en . "Reference books; a brief guide for students and other users of the library" . "Reference books : a brief guide for students and other users of the library"@en . "Reference books : a brief guide for students and other users of the library" . . . . . . . . . . . . . . "Reference books : a brief guide"@en . "Reference books : a brief guide" . "Bibliografia adnotowana" . . . . . "Reference books a brief guide for students and other users of the library" . . . . "Reference books a brief guide for students and other users of the library"@en . . . . "Guide to reference books"@en . . . . . . "Reference books. A brief guide for students and other users of the library" . "Reference books"@en . "Reference books" . . . "Reference books a brief guide for students, and other users of the library" . . . "Reference Books"@en . . . "Reference books : a brief guide for students[...]" . . . . . . . . . . . . . . "Reference books a brife guide" . . "Bibliografia" . "Reference books; a brief guide" . "Reference books; a brief guide"@en . . . . "Informatory" . . . . . . "Bibliography" . "Bibliography"@en . . . . . . . . "Bibliografie universali." . . "Obras de referencia." . . "Naslagwerken." . .