| Autor | Częstotliwość |
| Laubinger, Ricardo Lenzi |
4 |
| Ffrench-Davis, Ricardo |
3 |
| Otten, Henrique Ricardo |
3 |
| Ricardo, David 1772-1823 |
3 |
| Bitran, Ricardo A., 1958- 1958- |
2 |
| Bohm, Walter |
2 |
| Laubinger, Ricardo Lenzi 1959- |
2 |
| Paseyro, Ricardo |
2 |
| Waentig, Heinrich 1870-1944 |
2 |
| World Bank |
2 |
| Alderman, Harold 1948- |
1 |
| Andino, Ricardo L. Mies, D. Schmidt, R. |
1 |
| Antunes, Ricardo L., 1953- 1953- |
1 |
| Barros, de Paes Ricardo |
1 |
| Berger, Peter L. Herausgeber |
1 |
| Bertelsmann-Stiftung |
1 |
| Bondi, Gerhard 1911-1966 |
1 |
| Books on Demand GmbH |
1 |
| Burgi, Sergio |
1 |
| Busch, Harald 1904-1983 |
1 |
