Created by the Writing Lab at Purdue University, this web site provides concise information on APA Guidelines, writing guidelines and citation & bibliography examples.
Chicago Manual of Style Online
This 2017 edition of the handbook provides guidance on documenting sources and on writing style. This new edition also includes instructions and examples for documenting online publications and websites.
This page explains the system using separate bibliographic notes for citations rather than including them in the text as in often done in science papers.
This is the ninth edition of the MLA Handbook published in 2021. Provides detailed examples showing how to treat different types of sources in notes and bibliography.
Tricollege guide for using Zotero. Starts with an introduction and installation. It then describes how to use it as a versatile tool for research,organization, footnotes and bibliography.