On the various theme pages (e.g., 20th Century Democide) I have tried to put together similar topics and data from different publications of mine. In each case I have noted the source with an hypertext number in brackets. Clicking the number will take you to the source of the information or data, as in . Also, texts, information, and data on this site are either from the final electronic manuscripts submitted to the publishers or were scanned for this site. In those cases where I used the electronic pre-publication draft, the publisher's editing and my additions to the edited texts, of which I have no electronic records, are not included here. There may be some differences between the published versions, therefore, and those given on this web site. In each case such a possibility will be noted in the endnotes.