Sources are often things that students find hard, however there is a trick to it. There are certain questions you have to ask yourself about the source. These are: Content, context, provenance, purpose, tone. This helps break down what to write with the sources so that you have a beginning point to grapple with. You would need to see if you can identify if it is a government document, or a newspaper and if so what can you deduce from where the source came from. You also need to see the date that it has been produced, so if it is about the cold war then address what is the situation surrounding the date and what happened at this point. This is all what you can get from the first few lines of the description of the source. It makes your job a lot easier and it is there for a reason, if you know the facts surrounding the source there is no reason as to why you should not be able to get a lot of marks for the sources.