relevant
Connected to your topic and useful for your purpose.
summarize
To tell the main ideas of a text briefly, in your own words.
paraphrase
To restate one idea or sentence in your own words, at about the same length.
verify
To check that something is true or trustworthy.
reliable
Able to be trusted to give correct information.
cross-check
To compare information in two or more sources to see if they agree.
citation
A short record of a source: who made it, the title, where it was found and the date.
plagiarism
Using someone else's words, pictures or ideas as if they were your own.