Primary, Secondary and Tertiary Sources

There is no known copyright restriction in this work (US Constitution, 1 page) decided by the National Archives and Records Management Bureau.

In this guide, we will introduce three kinds of resources or information sources: elementary school, junior high school, university.

The Congress library stated that they are "different from the original materials of history - the original documents and objectives created during the study, the used information, descriptions, and explanations of events created by people without actual experience" It was.

The main sources of information are usually created during the events you are learning, such as newspaper articles, communications, diplomatic records, original search reports and notes, diaries. Items created after the event may also be included, but I will tell them again such as autobiography and oral history.

The secondary source is an account written later, which is known later. They are the interpretation and evaluation of the main sources of information. Secondary information sources are not evidence but rather evidence and discussion.

1 Yale University Library, "Elementary School, Junior High School, University Resources" http://guides.library.yale.edu/content.php?pid=129904&sid=1196376

The basic articles mainly depend on reliable second hand resources. Main sources of information may be appropriate, but relying on them may be a problem. For more information, please refer to the Major, Secondary, Third Source, and Misuse section of the BLP strategy main source of NOR strategy. Using this document to support this material does not violate Wikipedia, as ^ sources of information directly "directly support" specific material if information exists directly in the source. There is no original research. The referenced location (including whether it exists in the article) is irrelevant whether the source directly supports that document or not. For questions about the quoting method and method, please refer to WP: CITE, WP: CITELEAD etc.

Wikipedia articles should be based on reliable published secondary resources, and to a lesser extent, based on third party resources and primary resources. To determine the importance of topics and avoid new interpretations of primary sources, secondary or tertiary information sources are required. All analytical and interpretive or synthetic descriptions of primary sources need to refer to secondary or tertiary sources and should not be original analyzes of key sources by Wikipedia editors Hmm. Proper procurement can be a complex problem, these are general rules. It is good editorial judgment and common sense to judge whether primary, secondary, tertiary information sources are appropriate in both cases, and should be discussed on the talk page of articles. In the case of statements, a source can be regarded as a basis, in the case of different statements it can be regarded as a sub and the source can contain basic and sub source material of the same statement.