| ACERBI, Giuseppe |
| ACERBI, Libero |
| ACHLEITNER, Arthur |
| ACTON, William |
| ADAMS, John |
| ADDISON, Joseph |
| ADLER, Adolph Peter |
| ADLER, Jacob Georg Christian |
| ADLERHOLD, Germanus |
| AERSSEN van SOMMELSDYK, François |
| ALBANOV, Valerian |
| ALBERTI, Leandro |
| ALBERTI, Tommaso |
| ALBERTINI, Gianni |
| ALBERTRANDY, Jan |
| ALGAROTTI, Francesco |
| ALI Bey (pseud.) |
| ALIPIO, p. M. da Origgio |
| ALLAN, John Harrison |
| ALLIATA, Vittoria |
| ALOYSIUS |
| ALTAVILLA, Enrico |
| ALVARO, Corrado |
| ALVES MENDES DA SILVA RIBEIRO, Antonio |
| AMANTE, Bruto |
| AMATI, Giacinto |
| AMBROSOLI, Solone |
| AMBRUZZI, Luigi |
| AMIN, Mohamed |
| AMMANN, Olga |
| AMORETTI, Carlo |
| AMUNDSEN, Roald |
| ANDRÉE, Salomon Auguste |
| ANDRÉS Y MORELL, Juan |
| ANGIOLETTI, Giovanni Battista |
| Annales des voyages, de la géographie et de l'histoire... |
| Annali universali di viaggi, geografia, storia e statistica |
| ANNONE |
| ANOT, Pierre-Nicolas |
| ANSON, George |
| Antiquités romaines expliquées... |
| ANTONICELLI, Franco |
| APPELIUS, Mario |
| ARAGO, Jacques |
| ARBASINO, Alberto |
| ARCHENHOLTZ, Johann Wilhelm von |
| ARDEMAGNI, Mirko |
| ARLETTI, Antonio |
| ARMSTRONG, John |
| ARNABOLDI GAZZANIGA, Bernardo |
| ARNAULT, Antoine-Vincent |
| ARNDT, Ernst Moritz |
| ARTAUD DE MONTOR, Alexis François |
| ARTIERI, Giovanni |
| ASSEY, Annie Allnutt |
| AUCHER-ÉLOY, Remy |
| AUDEBER, Nicolas |
| AUDIN, Jean-Marie-Vincent |
| [AUDOT, Louis-Eustache] |
| AULDJO, John |
| AURENCHE, Henry |
| Ausfürliche und Grundrichtige Beschreibung... |
| AYNARD, Théodore |
| AYRENHOFF, Cornelius von |
| AYSCOUGH, George Edward |
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