After creating enough of them, you'll start to notice a consistent pattern with citations. It goes as follows:
Author(s), Year. Title of the thing you're citing, Title of the Thing It's In,
Location Information. Digital Retrieval Information
Here are some examples in a few different formats.
Morales C, Traveset A, Harder L. Sterile flowers increase pollinator attraction and promote
female success in the Mediterranean herb Leopoldia comosa. Ann. Bot. [serial online]. January 2013;111(1):103-111. Available from: Academic Search Complete, Ipswich, MA. Accessed November 5, 2014.
Morales, C. L., Traveset, A., & Harder, L. D. (2013). Sterile flowers increase pollinator
attraction and promote female success in the Mediterranean herb Leopoldia comosa. Annals of Botany, 111(1), 103-111. Retrieved from http://0-search.ebscohost.com.daeme.iii.com/login.aspx?direct=true&AuthType=cookie,ip,uid&db=a9h&AN=84556039&site=ehost-live&scope=site
As you can see, the information remains the same and only the order is changed. There will always be consistency in citations.
We should cite whenever we have directly quoted or paraphrased the work of someone else. You should also cite a source if you are including an image, chart or graph that in not originally yours. In college and always, citing is greatly encouraged whenever you are writing a research paper.