Even if you are using built-in citation generators or reference management tools, it is still important to have concrete knowledge of the chosen citation style so that you can verify the accuracy of the citations and learn what details are needed to cite correctly. The citation style referencing guide created by ELC is a helpful reference in learning how to cite the information correctly.
You can click on Referring to different types of sources to learn how to properly cite different types of materials, including but not limited to books, journal articles, newspaper articles, YouTube, etc.
Another helpful tool in this referencing guide is the Frequently asked questions. Below is an example explaining how to handle citations without author or date: