EndNote is a desktop bibliographic referencing application for gathering bibliographic references from online databases; amending, managing and storing references; formatting the references from a range of citation styles provided and exporting the references as footnotes, endnotes and bibliographies into Microsoft Word documents.
Aberystwyth University provides support and training for Endnote users.
EndNote X9 is available to download for free (Windows and Mac): https://myaccount.aber.ac.uk/protected/software/
Visit the EndNote FAQs: https://faqs.aber.ac.uk/index.php?search=EndNote
There are a number of free courses that you could attend focusing specifically on referencing:
Free undergraduate courses: https://www.aber.ac.uk/en/student-learning-support/undergrad/
Free Postgraduate Courses: https://www.aber.ac.uk/en/student-learning-support/postgrad/