When completing your assignments, you are expected to be contributing to disciplinary knowledge building by sharing your own ideas, evaluations and arguments. In other words you are expected to submit original work and give credit to other peoples' ideas, i.e., citing your sources of ideas.
Acknowledge ALL Sources from which you use ideas. This includes books, journal articles, blogs, e-mail communication, videos, websites, etc.
Take careful notes on what you read and where you found the ideas.
Always provide a citation when you:
Direct quote ideas taken from a source
Paraphrase ideas and opinions taken from someone else's work.
Summarize ideas taken from someone else's work
Present factual information, including statistics or other data – except when the fact is considered common knowledge (i.e. a well known fact like "Donald Trump is the current President of USA").
To cite sources use the citation style recommended by your instructor. The following links provide you with useful quick guides to citing sources using different styles.