Summary
A compressed account of a source's overall argument in your own words, much shorter than the original, with a citation.
A summary covers the whole and is much shorter; a paraphrase covers one passage at similar length. Both need citing. A summary usually needs no page number, because it refers to the work rather than a spot in it.
Summaries do the structural work in a literature review: three sentences on what a paper argued, and how it relates to the one before it. The skill is deciding what to leave out without misrepresenting what remains.
See also
ParaphraseRestating a specific passage from a source in your own words and structure, at roughly the same length, with a citation.Literature reviewA synthesis of the existing research on a question, organised by theme or argument rather than as a list of studies.AbstractA short standalone summary of a paper — usually 150–300 words — covering purpose, method, results, and conclusion.