If you are using google scholar to find journals etc, I would recommend that you use the cite function of it, it will compile a reference for you in a variety of styles.
Neils toolbox is a good one as well and will be helpful for websites as well as books / journals.
Lastly if you use mainly books from the library, look up an app called RefMe, you just scan the barcode of the book and it will make a reference for you in your chosen style.