You are acknowledging the work of others. You are also aware of the scholar's work and the scholarship they conducted. You are also showing that you are aware of how other authors' research contributes to a discipline, as well as your own paper's research.
When you acknowledge the work of others, it shows that you respect their work and ideas as intellectual property.
Citing credible and authoritative sources also lends support to the arguments you make in your written work.
Your readers get the information they need to pursue the resources you cited in your bibliography or references page.
There are many different citation styles for various disciplines, so always check with your professor to find out what style you are expected to use for your assignments.
RefWorks is a web-based bibliography and database manager that allows you to create your own personal database by importing references from text files or online databases and other sources. You can use these references in writing papers and automatically format the paper and the bibliography in seconds. Click on the link. Once there, you'll just need to sign up with your university email.
Zotero is a free, easy-to-use tool to help you collect, organize, annotate, cite, and share research. Zotero allows you to attach PDFs, notes and images to your citations, organize them into collections for different projects, and create bibliographies. It is available for Windows, Mac, and Linux.