There is no single way of writing references. The two most common styles are the Harvard system and the Numeric system, details of which can be found in the guides mentioned below. You will need to use the style specified by your department or by the body or journal to which you are submitting your work. For physics the numeric system is most widely used.
The Journal title abbreviations in physics page gives advice on how you can ascertain journal title abbreviations to be used in your reference list.
The Plagiarism: information and advice for students page includes these sections: