| Author's List |
| title | creator | language | description | tableOfContents | contributor | subject | created |
| A Problem in Greek Ethics Being an inquiry into the phenomenon of sexual inversion | Symonds, John Addington, 1840-1893 | en | 2010-04-17 | ||||
| A Problem in Modern Ethics being an inquiry into the phenomenon of sexual inversion, addressed especially to Medical Psychologists and Jurists | Symonds, John Addington, 1840-1893 | en | 2010-05-29 | ||||
| Studies in the Psychology of Sex, Volume 2 Sexual Inversion | Ellis, Havelock, 1859-1939 | en | Sex; Sex (Psychology) | 2004-10-08 |