All the sources you use while writing should be cited. There are different reference systems and in our guide "Referencing" you will find the reference systems Harvard, APA and IEEE with templates.
There are different ways to collect references depending on which system/database you are using.
Whatever citing service you are using, you need to double check your references and citations always. They may contain errors.
Easy ways of creating a reference:
With a referencing software you can create your own literature database of references that you have collected from different databases or typed in manually. You can use these references in your report when you cite in Microsoft Word, and create an automatic reference list in your document.
There are several softwares you can use;
Zotero is a free reference software that enables you to collect, organize, cite and import your references. It will also allow you to create an automatic reference list.