There are hundreds of citation styles that all express the same information in various orders and formats. There are tools that help with the specifics of citations but it is important, and beneficial, to know what it is that makes up the citation.
The two parts of every citation style:
Both of these parts need to be present to have an adequate citation. The bibliography entry is often the most complicated and where the majority of differences between citation styles occur. Almost all styles are made up of the same components:
Below are a couple examples of bibliography entries in APA style. Different styles will have the same components, just in different orders and different uses of parenthesis, quotations, and punctuation.
Citation/Reference management tools are incredibly helpful! Not only do they help you keep all of your research organized and in one place, they help you write your citations! Below are a few options to chose from. They all work about the same so use whichever you personally prefer.
If you need assistance with any of these, just ask!
In addition, there are various websites that will take the components of a citation and put it in the appropriate format for the style you need. Citation Machine is one example.