| | | Ecological monographs | 1931- | | Fulltext |
| | Donaldson, Walter, 1893-1... | Blue Kentucky moon waltz song / written ... | 1931 | | Fulltext |
| | Fowler, H. W. (Henry Wats... | The King's English [Elektronisk resurs] ... | 1931 | | Fulltext |
| | Fowler, H. W. (Henry Wats... | The King's English [Elektronisk resurs] ... | 1931 | | Fulltext |
| | Sée, Henri | Economic and social conditions in France... | | | Fulltext |
| | Parrington, Vernon Louis,... | Main currents in American thought [Elekt... | 1931[1930] | | Fulltext |
| | | American journal of clinical pathology (... | 1931- | | Fulltext |
| | Carlyle, Thomas, 1795-188... | Sartor resartus; [Elektronisk resurs the... | 1931 | | Fulltext |
| | Hobson, Robert Lockhart | Chinese ceramics in private collections ... | 1931 | | Fulltext |
| | Ranganathan, Shiyali Rama... | The five laws of library science. [Elekt... | 1931 | | Fulltext |