Even if your professor doesn't tell you to cite your sources, you still have too. Chances are, if they didn't tell you, they just assumed you know it's required. Any source you get information from whether it is an interview with a person, a pamphlet from a government office, a web page, a journal article, a book, etc. requires a citation. When you use that sources' information, you must give them credit; if you don't, you are plagiarizing.
Paraphrasing is different from quoting, but it's not always as easy to do. Here are some resources to help you learn how to paraphrase better.
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Many of the databases give you the option when you print, save or email a document (or the citation if the full text is not available) to save the citation in the style format you choose which you can then insert into your reference list.
Contact the Writing Center at 978-665-4235 / 3499 and see their Webpage for useful information and online resources at http://www.fitchburgstate.edu/academics/academic-support/writing-tutoring/.
MLA (Modern Language Association) Style is primarily used for the humanities - English, philosophy, music, religion - but can also be used in other subjects.
MLA Handbook 8th Edition by Grammar and proper sentence structure is an important part of academic writing. These resources can help you with most grammar conundrums:
Citing your sources is one of the most important steps in doing research. RefWorks will allow you to store and organize your citations as well as easily create your bibliography/references (whether annotated or not) and final paper in the correct style.
You can use RefWorks to: