According to the Merriam-Webster online dictionary, to "plagiarize" means:
The best way to avoid an accusation of plagiarism is to carefully cite your sources. The Harvard Guide to Using Sources provides useful tips on how to integrate and properly cite your sources to avoid plagiarism.
ZoteroBib or zbib helps you build a bibliography instantly from any computer or device, without creating an account or installing any software. It’s brought to you by the team behind Zotero.
Zotero is a free and open-source reference management software to manage bibliographic data and related research materials. Notable features include web browser integration, online syncing, generation of in-text citations, footnotes, and bibliographies, as well as integration with the word processors Microsoft Word, LibreOffice Writer, and Google Docs. It is produced by the Center for History and New Media at George Mason University.