Haeberle, E. J. (1983). The birth of sexology: A brief history in documents / Selected and Annotated with an Introduction by Erwin J. Haeberle. Foreword by Wilhelm A. Kewenig, Senator for Science and Research, Berlin. World Association for Sexology.
Lua i Stíl Chicago (17ú heag.)Haeberle, Erwin J. The Birth of Sexology: A Brief History in Documents / Selected and Annotated with an Introduction by Erwin J. Haeberle. Foreword by Wilhelm A. Kewenig, Senator for Science and Research, Berlin. Washington, D.C.: World Association for Sexology, 1983.
Lua MLA (8ú heag.)Haeberle, Erwin J. The Birth of Sexology: A Brief History in Documents / Selected and Annotated with an Introduction by Erwin J. Haeberle. Foreword by Wilhelm A. Kewenig, Senator for Science and Research, Berlin. World Association for Sexology, 1983.