How do I quote correctly in Usenet?

This text is an approach to translate the German article "Wie zitiere ich im Usenet?" by Dirk Nimmich into English. It is not intended to be a word-by-word translation, but rather to grasp the content of that article and explain it in English. The original is available from <> or <>.

1. Attribution

2. Quoting and Answering

3. Quotationmarks

4. How do I quote other resources?

5. Copyright