Secondary. A secondary souce is written after the event happened, like an article in an excyclopedia. A primary source is written during the tiem of the event or by someone who was alive then or was alive and witnessed it, like a newspaper article.
encyclopedia
A biography of Abraham Lincoln. (apex)
An encyclopedia article
an encyclopedia article
an newspaper article will be an secondary source
No. Think about Wiki.
The Structure.
at the bibliography at the end of the article
An article can be considered either a primary or secondary source, depending on its content and purpose. If the article presents original research findings or firsthand accounts of events, it is a primary source. If the article analyzes or interprets existing research or data, it is a secondary source.
To cite Encyclopedia Britannica in a research paper, follow this format: Author(s). "Article Title." Encyclopedia Britannica, Publisher, Publication Date, URL.
Read it and be very satisfied.
probaly the encyclopedia