- Author: Marion Dexter Learned (ed.)
- Language: German, English
- Year: 1909
- Author: Marion Dexter Learned (ed.)
- Language: German, English
- Year: 1915
- Author: Marion Dexter Learned (ed.)
- Language: German, English
- Year: 1916
- Author: Marion Dexter Learned (ed.)
- Language: German, English
- Year: 1913
- Author: Marion Dexter Learned (ed.)
- Language: German, English
- Year: 1914
- Author: Marion Dexter Learned (ed.)
- Language: German, English
- Year: 1910
- Author: Marion Dexter Learned (ed.)
- Language: German, English
- Year: 1911
- Author: Marion Dexter Learned (ed.)
- Language: German, English
- Year: 1912
- Author: Marion Dexter Learned (ed.)
- Language: German, English
- Year: 1906
- Author: Marion Dexter Learned (ed.)
- Language: German, English
- Year: 1907